Void Storage is only accessible by the player the items have gone to, the purpose of it is to prevent landlords kicking out renters and take the stuff they placed.
That's not how it works, though. Player placed objects by people that have full access on the plot don't go to void storage on removal. In any case, the system itself works as intended to protect renters.
If you think there is a bug, you could send the savegame to [email protected], but I've at least not been able to reproduce it with the given information in a quick manner.