Oh my goodness, you two are my heros, I was able to upgrade all the mods, then boot into single player, resave and reload once more and presto the desync 100% stopped. THANK YOU ALL SO MUCH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Another plot twist, the latest patch when it downloaded also broke our game so we are now 100% unable to play together on our 1000+ hour save. Is there something I can try to debug this myself?

Thanks,
Z

Google drive link fixed, thanks for the heads up!

Thanks again Loewchen, I think all the requested is attached now. Sorry for the issues before

Is there anyway to upload what I have and have someone help me check, or explain to me what I can try to do and I'll work to see if I can figure it out?

So, me and the spouse have a world that we've spent months working on. We've found ourselves in a bit of a weird spot, we have a handful of mods installed... which the game runs fine. However, if I add anymore mods, take away any mods, or update any of our existing mods we immediately get desync's ...