Problem z LOOPEM

Witam mam oto taki kod:

on place:
	if player is in world "minihc":
		add event-block to {rebuild::type::*}
		add location of event-block to {rebuild::loc::*}
on break:
	if player is in world "minihc":
		add air to {replace::type::*}
		add location of event-block to {replace::loc::*}
every 10 seconds:
	loop {rebuild::type::*}:
		loop {rebuild::loc::*}:
			set block at loop-value-2 to loop-value-1
	loop {replace::type::*}:
		loop {replace::loc::*}:
			set block at loop-value-2 to loop-value-1
	broadcast "&2&lNEWPVP &8>> &7Mapa na &6MiniHC &7zostala zresetowana!"

Co w nim nie działa? To że po tych 10 sekundach nic sie nie odbudowywuje. Prosze o pomoc