Getting Mail "Recovered files" in trash upon reboot

This week I have started seeing Recovered files" in the Trash every time I reboot my M1 MBP. Each time I empty the trash and then reboot, I get a different list of files. Sometimes it is one, some times several as shown on the screen shot. This is only for Apple Mail messages. No other file types are doing this.

Any ideas why this is occurring and a possible fix?

Screen Shot 2021-04-15 at 7.52.24 AM

I’ve been finding a recovered files folder in the trash after every reboot since I upgraded to Big Sur. AFAIK it’s usually empty.

I quit checking thinking it’s either a new feature or just another Big Sur bug. Sometimes it’s hard to tell them apart.

That makes me feel better. At least I know it is not unique to me. :slight_smile: