Post in forum #265727 - [Announcement] Tag categories for existing tags can no longer be changed via metatag

DiceLovesBeingBlown said:

Mind you, NMNY said "some" so maybe it's only available to a limited amount of privileges users for testing. This assumption correct at all? Or is it just a small bug for the moment? @NotMeNotYou

Meta tags should work for all tags that have less than 100 posts attached to them. If that doesn't work it sounds like a bug.