When a non-op user tries to place a door in the spawn protection, the door only half disappears. This is a client side only bug. The other users can't see the half door, only the player who originally placed it can.
[media]Attachments
Comments 10
Ticket resolved as incomplete, because no answer in a reasonable amount of time (1+ year), if it still happens, please update the ticket.
Sounds like a server plugin might be causing this issue, contact a server administrator or inform the plugin creator about the problem.