Bugs in Bayinnaung Campaign

After reentering the game and mission after saving, some of the Hero names changed to just a letter. For example; this hero is meant to be named “Nanda” but as seen in the screenshot, he is simply “X”
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The other hero (forgot the name) is also now just “C”
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My next issue is that the Arambai UU does not receive the upgrades from “Parthian Tactics”. I do not think this is right as arambai is classed as a “Unique Cavalry Archer” at the castle but does not receive the corresponding tech upgrade
In this image; I have fully upgraded Elite Arambai, and after Parthian Tactics is researched his stats stay the same
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