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Do you want to look for something in common? For example, @dupdob, is yours also an Intel Mac with T2 chip?

1. Yes, I do have a late 2020 intel MBP, with T2 chip.
2. I did what I said: backup and reinstall. But I did a reinstall as new and pulled data back manually, IIRC.

The issue never occurred again.

Sorry for the late reply. I just got a notification saying there responses on this thread. And I see there have been a lot of activity here.

Note sure why I did not get any other email notifications.
 
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