Ok, so probaly a "bug" introduced in 1.6
So in this case, like always, you can report it to the support
(including a save if possible, could be a "very" good idea)
Welcome to CD PROJEKT RED Technical Support! Here you will find help regarding our games and services, as well as answers to frequently asked questions.
support.cdprojektred.com
Take a look, really seem to be his jacket-shirt
View attachment 11319689
(maybe this item was added in the loot table by mistake and indeed, like it wasn't intended to be in the game, it don't have any description nor render on V).