unless I am gravely mistaken, that kind of behaviour is to be expected for now.
Don't worry about it, it happens to all of us, PS just crash-quits at the end.
I am sure the issue will be fixed at some point, as mac ps developers are surely aware of it.
I propose you don't need to send a report to apple about it,
just ignore the crash warning message in future.
greetings, player_of_games