@Herotu, I don't think a particular costume part is the problem. I just created a new character with a reset costume (plain black tights all over), changed it's second costume slot to have flared gloves, and then repeated the process. Crashed the client
Edit: And after a further test, it seems you don't even need to be unconscious. If there is a costume change queued up, as it were, and you zone before your constume changes, the client crashes.
While unconscious, using a costume change emote and then zoning before the costume actually changes causes client to crash.
Steps to reproduce:
Get defeated
Use costume change emote to switch to a different costume
Then, before the costume visually changes do one of the following:
If in zone without jails/hospital on map, Go to Hospital
If in zone with jail/hospital, use another method to zone such as Enter Supergroup base with passcode
Client crashes