Why my civemblem does not work

I have maintained updated techtree ui mod since release of first dlc. For the recent dlc update, something weird happens to my mod.

This is what my [modpath]/widgetui/textures/ingame/emblems looks like:

This is the armenians.png
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The following was tested when all but my single local mod is enabled.

This is what I got in game, where the Armenian emblem is replaced by Vikings somehow.
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This is what Vikings look like in-game.
image

I tested on Georgians too but it looks good to me.
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I also tested by deleting the files of new civ,

The armenians civ emblem is the original emblem, which is correct.

The vikings embelm is not loaded
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When I tested during all mods disabled, the original emblems are fine.

Please help me out if you have some idea what is happening here