Lobby
Lobby is the mirror
Spin the mannequin. That is the test. Do not burn a ready-up to “see if it works harder”.
Spin the mannequin
Missing hats usually means a socket did not ride along with the outfit.
Already queued?
Finish or leave. Mid-match pak experiments crash more than they “apply harder”.
Party view
Friends in your party still see your real locker. Do not argue with their screenshot.
Replay the swap?
Close Fortnite, run the app, launch again.