Ok so after having posted the initial bug report, i reinstalled tweak because I liked its features. Seeing as I figured you wanted a clean log/save etc. I reinstalled the game again just now. This time manually searching and deleting every shortcut or game file and backup folder of the game on my pc.
Having reinstalled it, I went into a battle and suddenly the problem wasnt there anymore. I then readded the tweak mod, and again
no problem.
So whatever triggered this bug is gone for the moment. Do you need to use the viking conquest exe file (desktop shortcut)? Im clearly no expert, but knowing that I have accidently used my regular exe file a couple of times and saved using that, maybe thats whats caused this?
Otherwise the only other thing must be that I pressed some wrong buttons during or after that siege I mentioned earlier. Anyway weird that its not buggy anymore seeing as I have tried reinstalling a couple of times already, with no result, but 3rd time lucky I guess.
If I encounter the bug again Ill let you know.
Thanks for quick answer btw

, I will provide those files you mentioned should I ever need to report a bug again.