im using gzdoom builder atm and im getting a glitch where i go to operate the door as normal, and it goes down one step then back to its original position.
ive made countless doors and never encountered this but for some reason these 2 doors just do this. only been building for a month now tho.
i read what was said here, so i made the ceilings in the sectors beside the door even with the roof again, then raised the floor to the ceiling instead.
operated the door and it worked like a dream.
i dont know the technical behind it but it would be good to know if anyone can be bothered explaining.