Having some challenges resuming or starting a new co-op campaign due to “incompatible versions” and after a bit of trial and error I have discovered that the problem occurs when we are using any mods where I am the author. It's not just one mod at fault, the problem occurs when we try to use any of my mods.
Both me and my partner completely our files then re-downloading the same version from steam, the game still thinks we have incompatible versions.
Is this a problem anyone else has experienced before?
Does anyone have any ideas how I can fix the issue?