if your having an issue making a locked door in MV yourself, just follow these instructions.
- Choose what makes the door unlock, variable, switch, Item, partner ect. (anything that you can use as a condition in the page settings of an event)
- Make a door using "quick event"
- Open up the "quick event" door you just made.
- Copy the event page, and clear the original.
- On the original page, code whatever you want to happen when the door is locked, say; a message that tells you the door is locked or something. (or put nothing there at all, doesn't really matter. I'd advice putting something to tell the player it's locked though, like a message.)
- Make page 2 (the original page, but it was copied to page 2, and page 1 was cleared) conditional with the condition you choose in step 1.
- test your door, use it, blah blah blah. should work fine.
If it does not work for your version, MV reads right to left, it's possible your reads left to right, try reversing the pages and see if that helps.