Zwift App on MBP Quit mid-ZRL Race 😖

Has the Zwift application on Mac ever expectedly quit for you?
Happened to me today in a ZRL Race. Very frustrating because had done all the big climbs and was in a small group at the front ready to put down the hammer.
I don’t think that I got a notification saying “Zwift Unexpectedly Quit”.
I wasn’t able to get back into the race so the team don’t get my points for finishing.
Nothing obvious in the Zwiftaliser logs.
Any thoughts?