I have a 2019 16 inch MacBook Pro running Catalina 10.15.5 with a strange problem. Just launching the Simulator can hard freeze the entire machine. The Simulator launches, the device shows a spinner that just keeps going and within a couple of seconds the machine beach-balls and the entire UI freezes with no possibility of option-command-escape to kill the Simulator. I've looked in the logs afterward and I don't see any good clues. This problem is much more likely to occur with a simulated iPhone device (much more rare with a simulated iPad) and it doesn't happen every time I launch a simulated iPhone, just somewhere between 1/3 and 1/2 of the time. Does anyone have any debugging or diagnostic ideas? Thanks!