I'm having some problems with my sanctum drop target. During the lock sequence, the target drops, the ball goes in the lock like it should, the target goes back up, then right back down, then up for a second, and then down for good. It will correct itself later in the game like at the start of another ball. It sometimes works fine.
I've always had this issue and got it to be fairly rare with adjusting the switch at the bottom of the sanctum target. I recently made an adjustment to the bottom screw to get the target to sit more level to the playfield when down. For some reason this made the sanctum target act up like 1 out of 3 lock sequences. I've tried to adjust the switch and it does trigger by the wall coming down. Works perfectly in switch test. Does this switch need to be adjusted a certain way? It seems pretty simple but something is not right.