for the edit crash. palace 3.5 and 3.6 for windows will crash when sliding prop pieces randomly. if you plan on flipping an avatar be sure to close the client and reopen it to save to your prp bag before sliding any pieces due to expecting prop slide crash.
for the one that mentioned their client randomly muting and sending op commands. if your connection is wireless or has problems from time to time bad packet spikes will cause random commands to get sent to the server from the client.