Spotted an incompatibility with the mod "Cpecific's Skill Queue" (or may be "Memreader" its framework dependance), Kostaltyn crash when after battle choices selected.

Hmm I've added new skill to kostaltyn thats why I guess. Lemme see what I can do about it. Thanks for the feedback

After the 2.1 update, this mod makes the game crash at the end of turn 1, during the AI turn of the Ropsmenn Clan (at least when playing as Katarin, with or without other mods enabled).

EDIT: I used another mod to confederate the Ropsmenn Clan, and the game still crashes at the 99th AI faction's turn after my 1st turn, not sure if that means it's another faction that's causing the problem.

I like running this mod with The Motherland mod that you have listed in the recommended section. But both mods each add an Armored Kossar Spear variant with different stat lines. Would be cool if there could be a patch or something to remove the unit overlap.