I went to transmog my shoulders and saw this error:
“Shoulders - This item cannot be transmogrified.”
Screenshot: https://i.imgur.com/XfPbVtn.jpg
When I mouse over my shoulders that I am wearing, they are already transmoged into another item. They are the Bonesigil Shoulderguards transmoged into the Blue Dragonspawn Shoulderpads - which are a cosmetic reward item.
Screenshot: https://i.imgur.com/tIooHwf.jpg
I believe there’s a bug with the item they’re transmoged into. I think the game thinks I’m wearing the cosmetic item (which isn’t possible) so I can’t re-transmog my base shoulders. There’s also no way to remove the transmog. I’ve tried /reloading as well as disabling all my addons. It doesn’t fix this issue. I’m a Drakthyr on Horde.