There has been just been a hard client crash for two Windows players simultaneously. It is not reproducible yet, but I am posting the data here so that we can look for patterns. A Linux player desynced but did not crash. The server seems to have stayed up until I rejoined, when I got an instant desync and the server crashed.
I had just switched a ship to a different line. SuperTimo had just Ctrl-Clicked on an x2 slope to build a tunnel entrance. When I rejoined, the server save showed the ship had indeed switched do a different line but that tunnel had not been built.
The client backtrace is
here. My simu.log is temporarily
here, though there is nothing very interesting, just a fetch_goods() complaint about an unknown arrival time, which is not so rare.