My flags keep turning red
I am using flags in Mail on my MacBook Pro (using Monterey 12.3.1). Up until yesterday I had 6 different colours used. Now when I try to add one of the coloured flags to a mail it flips it to red after you select it and it has now moved historic mails with a yellow flag to red as well. When I try to change the red flag back to yellow it just flips it back to red again straightaway.
MacBook Pro 13″, macOS 12.3