I hope that this subforum is supposed to work like an issue tracker, otherwise sorry for posting every reproducible crash!
Version: 0.11.1
Description: if you attempt to deconstruct (with RMB) a damaged stone wall, other clients crash. If you try to save the game afterwards (as host) and repair/deconstruct the walls alone, other clients will face immediate desync upon finished map download.
Reproducing steps: self-explanatory.
Deconstruction of damaged stone walls causes crash on Linux
Re: Deconstruction of damaged stone walls causes crash on Li
I believe, it is (remotely) connected to the biters pathfinding desync problems. And it is fixed for the next (0.11.4) release.