I do have a save file, I uploaded it as instructed (at least, I THINK it's that correct save file, judging by the filename and date created. Just in case, I uploaded 2).
Game version was the current live version 1.4.1 (not beta), and I was using a few mods, but none that should be interfering with battles at all:
-Improved Garrisons
-Fighting Together Relationship
-Smith Forever
-Less Greedy Rulers
-Daily Skill Progression
-And another mod I made for myself that caps the max influence of all clans at 3k.
None of these should be interfering with anything battle related, as far as I know, and none of them interfere with the save file either so the save file should be bootable even without the mods.