Move it all the way to the far left (center) as you can go. If it lines up, sometimes it will begin to beep when you near the exit.
However, if it has a "Construction" sign in front of the exit - then it's bugged.
At which case, you can use my save, that has Ace landed, and one screen to the right (last time I saved right after Ace landed, it locked up the game)
https://itch.io/post/1992834