This is related to ticket #0025825 which was closed due to the support team not being able to reproduce the issue, thus they attributed it to desync or server performance.

To prove that this issue is consistently reproduceable and not due to server performance or desync, I demonstrated the bug in the video below. This was done on a server with low population (4/30) that had exhibited no desync or other performance-related issues (delays when performing actions, global sounds, etc.).

Video (sorry for all the TeamSpeak beeps): https://youtu.be/otDFalkFGFU

I don't have knowledge of the inner workings of the game like you guys do, but it sure seems like it could be something misfiring with the item cleanup system?