I’m having an issue with the combined backpack (and one bag in particular when not combined) where my items are not showing any icons. I can mouseover them and the tooltip shows.
There appears to be some kind of item in the affected bag that has no tooltip and when I click+hold on that slot it shows a red question mark icon. I’ve tried selling the item to a vendor, who doesn’t want that item. I also tried to drag it out of the bag to delete it and nothing happens. I am presuming that it might be some leftover remnant of a quest item, I have just finished the first day of “Secrets of Azeroth” and received “the Inquisitive” title.
Just done a bunch of reloads and scan/fix in battle.net and have managed to work out that it’s Bobby Carlisle’s Thinking Cap Notes that has caused it. Comes from the chap sat at the bar in Valdrakken with the blue ? (or magnifying glass) over his head. Now, I still can’t read any of the note as it remains non-interactive but I suppose it’s progress!