Cant get rid of that message after trying all from the support page.
Games crashing mostly at laoding saved games. Especially irritating when exploring or savescumming for battles.
Update:
After i deleted all old crashdumpfiles and related files for crashdumps, in that folder where they are saved and are related to Patch 6 and older, fixed the Data Mismatch Error in Launcher for me.
Still... the problem when ingame and played for some time, made savegames too, i still have the problem when loading a prior or just new savegame, the game crashes anyway.
Though i can load save games just as normal at the Main menu after i restartet the whole game.
Maybe (not testet yet) going back to main menu and loading from there will be a workaround for timebeeing...will try that in a moment.