Prior to the most recent update, the rune icons above my health bar were gone completely. Now that they're back, I have a permanent XP boost icon stuck on there as well and it's pretty distracting among the other rune icons. For the record, I never bought any XP boosters, I only ever received the temporary ones from the Amazon Prime Gaming rewards (I had the same issue months ago when I first obtained them). They surely must have run out by now so I don't get why they're still displayed. There is also no option to disable them on my inventory screen.
Another smaller inventory bug I have is a duplicate quest item which appeared after an update some time ago. It's a Bloody Amber from the druids DLC. They were gone once I finished the corresponding quest, but now I have an extra one in my inventory.