Can't queue Comp Stomp brawl while grouped?

[Zreicia-illidan]

Cannot queue for Comp Stomp in a Group anymore?

Same as title. Been doing Comp Stomp the past year with friends. We make it a fun day just chatting and having fun. Tried to queue with a friend today and the button is greyed and the hovering box says “You can’t do that while in a group.”