That is correct. I had a look and Karl Topia only has textures for the slave faction. The thing is that Albania faction was added to the mod only recently but we already had guys like Topia and Skanderbeg in as rebel characters, but I forgot to update the battle entries when we added the faction. Skanderbeg as well.
Here is the fix (save-game compatible). Just put it into data/unit_models folder and replace
https://drive.google.com/file/d/168Y...ew?usp=sharing