When hiding a part on the "search parts" tool, and then going to the pain option, the hided parts appears again, this is very annoying when working with painting and hided parts.
(photo thumbnail is NOT the actual bug)
Here you can see the hidden inlet.
When I go to the paint tool, it appears again, it still remains "hided" as I can't click it, but visually it appears like a normal part.
Good glitch :)