Today Zwift crashed twice when I had Play controllers paired to my MacBook. The first time, it crashed completely as soon is a tried to join a Pacebot and had to be restarted. The second time I rode for about five minutes and then I was booted out of ride but oddly able to save the ride. I unpaired the controllers and was able to ride without further incident.
Mainly just posting this just to note odd behavior. I wonder if anyone else on Mac has experienced this.
I will try again to tomorrow with controllers and see if it keeps happening.