Air Anchor door: Opposite effect with hidden switch?

Hi,

I've been working on an FFVI hack off and on for a while now and I'm nearing completion. However, it seems I ran into a small issue. The door in the Fanatics' Tower that leads to the Air Anchor is already there when you enter the First Ascent. When you press the button to the right of the Safety Bit, the door disappears. In essence, I'm seeing the opposite of what should be happening.

Does anyone have an idea as to what went haywire here?

Thank you for your time.