Having a small problem with multiplayer games and locks.

Boat has a ball locked from a previous player
Current player locks his first ball. Then the boat should release one ball --> instead lock release plunger is activated too long (or balls roll down too fast) and both balls are released from the boat instead of only 1.
Lock release plunger moves smooth and no binding.

There doesn't seem to be any adjustment in software or hardware for this.

Any tips? Is this because the lock switch no2 is released too late or what could I do.

Thank you! Appreciated