While possessing a Zombie the server closes unexpectedly and upon trying to rejoin it just crashes. Crash report here:

https://pastebin.com/5ELnsb61

Not sure if it specifically matters it was a Zombie.

I don't think it was about the possession, more about the body you left behind. I'm not too sure what happened, will have to investigate.

Considering how player shells have been reworked in the last few versions, I'll assume this crash is no longer relevant. Feel free to reopen if you get it again.