How to make Apple Mail on Mac reapply rules?
On a MacBook 15" 2018 with T2 chip I have just reinstalled macOS 10.14.6 after erasing the internal boot volume, then migrated accounts, apps, data and settings from a clone of the boot disk made just before I erased it. After discovering that all my email (all IMAP accounts) survived, but didn't seem to have been indexed (hence Flagged and VIP only contain mail received after reinstallation), I discovered the Mailbox > Rebuild. That seemed to do the trick, but my Rules don't seem to be applied. Most of them just are supposed to change the background color of the emails, which is a big help when looking for something, but the rules aren't being applied, not even when I change them and Apply and then change them back and then Apply.
Does anyone have a clue as to what to do?
MacBook Pro 15″, macOS 10.14