Can't Right Click Items

Recently I’ve lost the ability to right click items, so I can’t drop them or look inside smart stacks. Is there any fix for this?

Can you confirm its not your hardware?

Yes, right click still works for using held items, just doesn’t open the item menu in the inventory.

Can you confirm if this happens every time? Do you remember what you were doing before the issue occurred?

Yes, I’ve tried reinstalling it and restarting the computer. It first happened a few weeks ago before the last update when I stopped playing for a bit, so I don’t remember what I was doing.