Had a problem with ToT in that it stopped announcing when other civs started wonders, then a couple other bugs started to crop up. No biggie, found another game to play.
Now the new game is done, so back to ToT. found a directory of program files on my NAS and an uncorrupted ISO that won't run startup - of course.
SO, Windows 10. Current patch levels. Running TOTPP 18.4. BUT, when I run a map size over 10,922 - some civs stop researching at all.
I'm hoping this, by any chance, is a known bug or issue with a known fix?