Have you ever installed a mod? Even if you deleted.
I actually had mods installed. "Native" "Sandbox" and 2-3 others. Unable to uncheck them from the launcher, I deleted them from the game folder. Now, when I launch the launcher, I can only select multiplayer.
I had to delete a folder that I shouldn't have. I ran a file integrity scan. So I re-downloaded the missing files.
After downloading the files again, I have the "Native" "Sandbox Core" "CustomBattle" "Sandbox" and "StoryMode" mods. I can't turn them off from the launcher. What should I do ?
From what I remember, I may have installed the mod one day to play multiplayer, but I'm not even sure it was on this game... I also had to install a French translation in the first days of the game release but I deleted it a while ago. In any case, I have already been able to play the game again since I uninstalled these mods. Since I changed setup and I formatted my hard drives. It's since I reinstalled the game on my new computer that I can't launch more than the launcher. I don't know if this information can help you