Bosses in the dalaran dungeon being marked as placeholders

This might be completely just some bug on my pc as it seems that some people didn’t have the same issue but it seems that some bosses have their pictures marked as placeholders, it doesn’t affest the gameplay at all, it just seems to be a small graphics issue, not too problematic, i just wanted to place a report just in case this happened to someone else aswell (i didn’t manage to put my screenshot here as i’m kinda new to the forum so I’ll just put a link to my FB post that i made in my country’s FB HS group here: https://www.facebook.com/groups/749280908432248/permalink/2911482175545433/ )

There is a known issue sticky post in this forum: