Hello, I have the same problem, Oxenefordscire treasure hoard is always in my inventory after I found the treasure. I'm at 1.2.0.1 on PC. Do you always need a video as a proof?

Normally : "A" button for climb, "B" button for fall.

But regularly, "A" become normal attack and "B" use the bow. But when I go to the control options, nothing has changed. So, each time, I must quit the game to the menu and reload the save to solve this problem and having normal control. It's very anoying because this bug happen regularly randomly, but quite often.