Problem with flagged email - wrong count

Hi,

I'm using:

Mac Version: 13.0.1

Mail Version: 16.0 (3731.200.110.1.12)

iPhone 13 Pro Version: iOS 16.2

The mail that I flag goes into the "Flagged" folder and stays there even after they are not flagged anymore on the iMac, resulting in incorrect flagged email counts. The counts on the iPhone ARE correct. I have tried removing "envelope index" in the library and it has reduced the flag count on the iMac, but it is still the incorrect count.

Ideas?

Thanks.