So, my ETS 2 just updated to 1.30.2.2 and after the TruckersMP update I tried to launch it, but all I got was a prompt saying "The game filesystem failed to initialize."
I tried everything: Verifying game cache, reinstalling TruckersMP, reinstalling the game, reinstalling the TruckersMP ProgramData folder, reinstalling both TruckersMP and the ProgramData, yet nothing helped.
If I launch the game in singelplayer, however, everything works fine.
Launching both steam and TruckersMP as admin leads to the same error.
Launching steam as admin and running TruckersMP as a non-admin results in a singleplayer session for some reason.
I don't think this is important, but I recently updated my Windows 10 from 1607 (anniversary) to 1709 (fall-creators).
Does anyone know why this might be happening? And more importantly, what can I do about it?