I have an issue where the front two metallica graveyard markers don't register a hit on the opptos. They will register if I press down hard on them or wiggle them (once they are down) but I cant seem to get them adjusted in the game. The back target does work. Anyone else can help with this issue? Long story short this is new replacement playfield - it just has taken me a year or more to put the game back together because it was in storage.