Bug/Issue Possible bug with Pet Tethers, having trouble reproducing issue

I occasionally get a server crash when I have a monster in a pet tether. It only seems to happen when there's a monster in one, as far as I know, it only seems to happen when it's a procgen and not a named monster like a Poptop, and it happens rarely and arbitrarily with no apparent explanation. I'll post the log the next time it happens, but for now, does this happen to anyone else?