Two things to report in one go here.
First, when you repeatedly use the commands menu, not spamming it, but are on it issuing orders a lot, the game has a habit of at some random point, crashing. I can't say exactly when it will do it, but if you try to use the in game command menu a lot to bark out orders, eventually the game crashes.
Second, When I crash out of a server, which can be very random as to when it happens, I CANNOT re-connect to that server without crashing again. It will let me into the lobby, and I can select a role and hit "continue" but the second it finishes loading the game data it just crashes again. It will continue to do that for several hours before letting me back on the server.