Due to forum rules, I am creating a continuation of the original thread (which can be found here). And what better time to bring this back up than with the Noblegarden event going on right now?
Prior to Patch 9.0.2, the White Tuxedo Shirt was displayed in the Appearance tab under Shirts and could be transmogrified into or – if wearing the shirt – out of it. Said patch broke the item by removing it entirely from the Appearance tab (despite what the tooltip tells you), and interacting with a transmogrification NPC while wearing the White Tuxedo Shirt will behave as though you have nothing equipped in the shirt slot. This is completely counter to how the item functioned for (at least) all of the Legion and Battle for Azeroth expansions.
It’s been about three and a half years at this point. Can we please have our shirt back?