While creating fences, I attempted to use a fence kit to start construction of a new wall. From my perspective, I completed the animation to place the fence kit, however it did not "place"- Instead, it dropped to the ground and a FAL appeared where the fence should have been placed. I was able to pick up the FAL (It spawned without any attachments or ammunition), and drop it with no issues. Upon attempting to pick up the fence kit item that also dropped, the server crashed.
A second person who was helping me build did not see the fence kit in my hands, and I believe instead saw my FAL in my hands (A weapon that, from my perspective, was on my back). I will need to confirm this, however.