Modified morematerial.json not working, modified materials.json making the game laggy

I am trying to make a new UI set for the game.

I have changed the HUD for target civ in civilizations.json and

Used the following code to define HUD in morematerials / materials json (As you can see in screenshot I am using Huns civ and SEAS panel texture for test purpose):

{
    "Materials":  [
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiBottombar",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiBottombar"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiCommandPanelCollapsed",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiCommandPanelCollapsed"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiCommandPanelExtended",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiCommandPanelExtended"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiMapPanel",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiMapPanel"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiMenuPanel",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiMenuPanel"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiResourcePanel",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiResourcePanel"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldCastleAgeActive",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldCastleAgeActive"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldCastleAgeHover",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldCastleAgeHover"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldCastleAgeNormal",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldCastleAgeNormal"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldDarkAgeActive",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldDarkAgeActive"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldDarkAgeHover",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldDarkAgeHover"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldDarkAgeNormal",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldDarkAgeNormal"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldFeudalAgeActive",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldFeudalAgeActive"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldFeudalAgeHover",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldFeudalAgeHover"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldFeudalAgeNormal",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldFeudalAgeNormal"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldImperialAgeActive",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldImperialAgeActive"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldImperialAgeHover",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldImperialAgeHover"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiShieldImperialAgeNormal",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiShieldImperialAgeNormal"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiSingleSelectionPanel",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiSingleSelectionPanel"
                                          }
                      },
                      {
                          "MaterialDef":  {
                                              "Name":  "CivIndiTopbar",
                                              "Type":  "Atlas",
                                              "Blend":  "InverseAlpha",
                                              "AtlasRef":  "CivIndi",
                                              "TextureRef":  "CivIndiTopbar"
                                          }
                      }
                  ],
    "AtlasTextures":  [
                          {
                              "AtlasDef":  {
                                               "Name":  "CivIndi",
                                               "MaxWidth":  2048,
                                               "MaxHeight":  2304,
                                               "Cached":  "none",
                                               "Textures":  [
                                                                {
                                                                    "RefName":  "CivIndiBottombar",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/bottombar.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.893446",
                                                                    "imageBRX":  "0.937256",
                                                                    "imageBRY":  "0.924696"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiCommandPanelCollapsed",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/command-panel_collapsed.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.000217",
                                                                    "imageBRX":  "0.322021",
                                                                    "imageBRY":  "0.179036"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiCommandPanelExtended",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/command-panel_extended.png",
                                                                    "imageTLX":  "0.322510",
                                                                    "imageTLY":  "0.000217",
                                                                    "imageBRX":  "0.644287",
                                                                    "imageBRY":  "0.179036"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiMapPanel",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/map-panel.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.179470",
                                                                    "imageBRX":  "0.419678",
                                                                    "imageBRY":  "0.358290"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiMenuPanel",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/menu-panel.png",
                                                                    "imageTLX":  "0.420166",
                                                                    "imageTLY":  "0.179470",
                                                                    "imageBRX":  "0.788818",
                                                                    "imageBRY":  "0.298828"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiResourcePanel",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/resource-panel.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.717231",
                                                                    "imageBRX":  "0.854248",
                                                                    "imageBRY":  "0.836589"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldCastleAgeActive",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_castle_age_indian_active.png",
                                                                    "imageTLX":  "0.420166",
                                                                    "imageTLY":  "0.299262",
                                                                    "imageBRX":  "0.492920",
                                                                    "imageBRY":  "0.355252"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldCastleAgeHover",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_castle_age_indian_hover.png",
                                                                    "imageTLX":  "0.493408",
                                                                    "imageTLY":  "0.299262",
                                                                    "imageBRX":  "0.566162",
                                                                    "imageBRY":  "0.355252"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldCastleAgeNormal",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_castle_age_indian_normal.png",
                                                                    "imageTLX":  "0.566650",
                                                                    "imageTLY":  "0.299262",
                                                                    "imageBRX":  "0.639404",
                                                                    "imageBRY":  "0.355252"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldDarkAgeActive",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_dark_age_indian_active.png",
                                                                    "imageTLX":  "0.639893",
                                                                    "imageTLY":  "0.299262",
                                                                    "imageBRX":  "0.712646",
                                                                    "imageBRY":  "0.355252"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldDarkAgeHover",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_dark_age_indian_hover.png",
                                                                    "imageTLX":  "0.713135",
                                                                    "imageTLY":  "0.299262",
                                                                    "imageBRX":  "0.785889",
                                                                    "imageBRY":  "0.355252"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldDarkAgeNormal",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_dark_age_indian_normal.png",
                                                                    "imageTLX":  "0.786377",
                                                                    "imageTLY":  "0.299262",
                                                                    "imageBRX":  "0.859131",
                                                                    "imageBRY":  "0.355252"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldFeudalAgeActive",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_feudal_age_indian_active.png",
                                                                    "imageTLX":  "0.859619",
                                                                    "imageTLY":  "0.299262",
                                                                    "imageBRX":  "0.932373",
                                                                    "imageBRY":  "0.355252"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldFeudalAgeHover",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_feudal_age_indian_hover.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.837023",
                                                                    "imageBRX":  "0.072998",
                                                                    "imageBRY":  "0.893012"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldFeudalAgeNormal",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_feudal_age_indian_normal.png",
                                                                    "imageTLX":  "0.073486",
                                                                    "imageTLY":  "0.837023",
                                                                    "imageBRX":  "0.146240",
                                                                    "imageBRY":  "0.893012"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldImperialAgeActive",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_imperial_age_indian_active.png",
                                                                    "imageTLX":  "0.146729",
                                                                    "imageTLY":  "0.837023",
                                                                    "imageBRX":  "0.219482",
                                                                    "imageBRY":  "0.893012"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldImperialAgeHover",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_imperial_age_indian_hover.png",
                                                                    "imageTLX":  "0.219971",
                                                                    "imageTLY":  "0.837023",
                                                                    "imageBRX":  "0.292725",
                                                                    "imageBRY":  "0.893012"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiShieldImperialAgeNormal",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/shield_imperial_age_indian_normal.png",
                                                                    "imageTLX":  "0.293213",
                                                                    "imageTLY":  "0.837023",
                                                                    "imageBRX":  "0.365967",
                                                                    "imageBRY":  "0.893012"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiSingleSelectionPanel",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/single-selection-panel.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.358724",
                                                                    "imageBRX":  "0.667725",
                                                                    "imageBRY":  "0.537543"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiTopbar",
                                                                    "FileName":  "textures/ingame/panels/INDIAN/topbar.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.925130",
                                                                    "imageBRX":  "0.937256",
                                                                    "imageBRY":  "0.948134"
                                                                },
                                                                {
                                                                    "RefName":  "CivIndiRecordPanelTableFull",
                                                                    "FileName":  "textures/ingame/recordedgames/INDIAN/record_panel_table_full.png",
                                                                    "imageTLX":  "0.000244",
                                                                    "imageTLY":  "0.537977",
                                                                    "imageBRX":  "0.667725",
                                                                    "imageBRY":  "0.716797"
                                                                }
                                                            ],
                                               "DefaultSource":  "textures/atlas/HD/CivIndi.dds",
                                               "UHDSource":  "textures/atlas/UHD/CivIndi.dds",
                                               "HDSource":  "textures/atlas/HD/CivIndi.dds"
                                           }
                          }
                      ],
    "GlobalTextures":  []
}

Build #96976