Placing a dispenser or comparator directly above or below is messed up. Placing on ceiling leaves to "top" on the bottom facing you with no front side anywhere. Placing below you does similar effects.
Placing a dispenser or comparator directly above or below is messed up. Placing on ceiling leaves to "top" on the bottom facing you with no front side anywhere. Placing below you does similar effects.
What are you trying to place the dispenser above or below?