The observer only detected upgrade top of the door if opened/closed with energy (button, lever, etc.), but not with your hand.

The observer only detected upgrade top of the door if opened/closed with energy (button, lever, etc.), but not with your hand.
Its bottom is always detected... But its top, only detects if opened/closed with energy; Opened/closed with hand is undetectable.
In the images, the bug is seen.