Hi! I am currently on a Macbook Air. I bought CK3 about 4-5 days ago on Steam, and have enjoyed playing it for about 50 hours. The FPS was a little slow, but the game was keeping up and there were no issues to report. Yesterday and today I tried using some mods, such as the Game of Thrones and Fallen Eagle. These two mods I could not get to work on any beta of the game, so I gave up on it (I would still like support trying to fix this issue, as I got the game on steam primarily for the mods). However, once I went back to "none" beta participation to reload the vanilla game, it took extremely long to initialize and then came up with this rendering. I can still work the game, but it's obviously unplayable when it looks like this. Please help! I tried to verify integrity of game files, uninstalled and reintalled the game, and restarted my computer. None of these things worked.
