In Raldbthar I have run through the dungeon once already and was not able to kill the centurion after you complete the puzzle. So I left and came back a few levels later and decided to finish him off again. However the dungeon has reset, and the gears are acting as if there is still bones lodged inside of them. With said bones lying on the ground where I already dislodged them. I cannot interact with the gears in any way since the required item is chilling on the ground. Any help please?