Hi!
My fiance and I have been trying to play grounded together since August 3rd, but every time we do we get this error message (attached). We've tried everything: verifying files, changing who would host, even tried uninstalling and reinstalling the game each, turning crossplay on and off - nothing worked. When we did get different error messages we were able to fix those but it brought us back to this one. I've been able to do multiplayer with a friend previously, and we've both been able to join a friend starting a multiplayer lobby but not at the same time. We aren't on the same wifi, or in the same house - though we did try this too. Any help would be appreciated!