First of all great game! play it again and again, and the mods make it really interesting!

now i ran into a problem. i play multiplayer with 3 friends, hosted on a server of a friend and everything works fine. connecting the second time after 5h of playtime, i get a desync loop, when joining first to the server. after a friend joined however, everything is working fine again. today same problem: 10h into the game we cannot join anymore, as we get desync loop problems.
here are the the files i think are necessary to investigate.
i often read its a mod problem, but how can that be, when it worked fine before?
thanks for the help!
So Long