Skrypt na BoyFarmer i SandFarmer [problem]

Witam,
problem jest następujący:
Kładę na ziemi jeden boyfarmer to wszystko elegancko działa, obsydian się tworzy bez zastrzeżeń, lecz gdy mam w łapce więcej niż jeden boyfarmer nagle nic się nie dzieje.
Oto kod:
 

command /boyfarmer:
	trigger:
		if player has 8 obsidian and 1 golden apple:
			remove 8 obsidian and 1 golden apple from player
			give red terracotta named "&6BoyFarmer" to player
		else:
			send "&4Blad: &cNie posiadasz wystarczajacych przedmiotow zeby stworzyc &6BoyFarmer" to player
command /sandfarmer:
	trigger:
		if player has 8 sand and 1 golden apple:
			remove 8 sand and 1 golden apple from player
			give white terracotta named "&6SandFarmer" to player
		else:
			send "&4Blad: &cNie posiadasz wystarczajacych przedmiotow zeby stworzyc &6SandFarmer" to player
on place of red terracotta:
	if player's tool is red terracotta named "&6BoyFarmer":
		loop blocks under event-block:
			if loop-block is bedrock or stone or andesite or diorite or gravel or grass block or dirt or obsidian or sand or tnt:
				stop
			set loop-block to obsidian
on place of white terracotta:
	if player's tool is white terracotta named "&6SandFarmer":
		loop blocks under event-block:
			if loop-block is bedrock or stone or andesite or diorite or gravel or grass block or dirt or obsidian or sand or tnt:
				stop
			set loop-block to sand