Hi am trying to try that pattern, my doors appear twitchy... how I set up my door! Note that the self switches are correct for each page first no switch, second A, Third B, then cancels B switch so door goes back to default.
Maybe you choose the wrong pic on the b self switch. (The 5th frame) Keep in mind the frames goes like a snake (from top to bottom, 2.row bottom to top, 3th row top to bottom) I did this because it's more easy to set up with RPGMaker.
... how I set up my door! Note that the self switches are correct for each page first no switch, second A, Third B, then cancels B switch so door goes back to default.