Have noticed several times now when dismantling a built item near to a placed tent, the previously placed tent will react as if it has been thrown by shaking and bobbling up and down, before settling a good few feet above where it was originally placed. The location is still the same, it is just several feet higher in the air. This results in being unable to pack the tent again, and in some instances the inventory becoming unavailable, depending on where the tent has been placed. This has occurred with a tent placed inside a building and also on top of a building with nothing above it.