It seems that certain combinations of maps and heroes causes the entire Mac to crash consistently.
I played some games the last few days and everything went fine until I got a game on Sky Temple. The Mac just rebooted once the game got started with multilingual os error message. I tried to rejoin the game twice. Both times the Mac rebooted once I got back into the game.
I have an iMac 27-inch 2019
3.7 GHz Intel Core i5
40 GB RAM
Radeon Pro 580X 8 GB
macOS Catalina v10.15.3
After that I gave up once I remembered that the same thing happened a couple of weeks ago when I decided to take up some HotS again. That time I also played multiple games just fine, then one combination, probably of map and/or heroes caused the Mac to start rebooting every time the game was about to start.
I did not get a prompt to send a crash report to Blizzard because the entire OS crashes and reboots. I have sent a crash report to Apple since it prompted me after the second reboot.
I can’t find a replay file for the crashing game either in the folder where the other games I played are (~/Library/Application Support/…/Multiplayer)
I don’t remember all the heroes. It was Quickmatch on Sky Temple. I was Murky and there was a Nova on my team. There was a Butcher on the enemy team, but no tanks.
I have another Sky Temple game in the replay folder in the most recent batch up games, so it’s not Sky Temple alone that causes the crash.