I have the steam version of Medieval 2/Kingdoms, previously the only problem I had was the game crashing when trying to engage an army with the Faction leader+Heir in 1 army on the battle map. I thought "verify integrity of game files" would fix it but it didn't, after doing that THERA REDUX crashed on any battle. I reinstalled Med2 and also deleted all the files from steam after uninstalling it for a fresh new install, the same problems persist. I tried compatibility mode with Windows XP and that made THERA REDUX switch to a resolution so low that I can't navigate anything, I uninstalled it again since I found no option to change THERA REDUX resolution in text files and the one for Med2 was still fine.
AMD/Nvidia graphics cards allow you to play at resolutions higher than your native resolution (mine is 4k). 7680 x 4320 looks so much better than 3840 x 2160 , I would rate the graphics 7.2/10 on 4k and 7.8/10 on 8k. Meanwhile 8k worked fine on THERA V4 and the Vanilla game, all because I decided to "verify integrity of game files" , this problem started. Every time I try to do a battle on 8k (7680 x 4320) , I get the "medieval 2 has encountered an unspecified error" and it crashes.
I will try another installation another time but I doubt it will work on this resolution again, can anyone please help me? I would really appreciate it. Doubt anyone would have a solution to this problem, it's a rare one.