Factorio Forums

I recently transfered my headless Server from Windows to Linux (Debian 12) and since then my friends have problems connecting and the modmissmatch window is no longer popping up.
I don't have any problems and my modmissmatch window behaves normally.

We discovered that when he disables all mods and then attempts to connect, he encounters the 'Mod Mismatch' window. However, there is only a 50% chance that he can successfully connect after synchronization. I, on the other hand, still haven't encountered any issues.