Orb stuck between wall and strongbox

Did a Mountain Ledge map yesterday and opened a strongbox (normal one), that was located right in front of a rocky wall. A bunch of loot dropped, but that one orb of fusing i wasnt able to take, no matter from which direction i tried. All other items i could take up without problems. I also wasnt able to see the fusing-graphic on the ground when i zoomed in, it felt like the orb has spawned between the strongbox and the wall behind.
Never happened to me before, might be a rare bug?
Forgot to make a screenshot though.

Not really a bug tbh, it's a combination of tile sets and strongboxes, they would need to add an exception to stop it from spawning in that combination but without the debug code and the screen shot that isn't likely to happen.