Map border is different than the one in advance map

[jehowi]

Hi,

I have a question.

So as soon as I warp into a new map, the border on the top and the bottom side don't change to the map border I'm using in advance map. There's nothing wrong with the left or right border. They take over the map border from advance map, but that doesn't happen on the top or the bottom part of the map. It does this every time I warp to a different map (for example when I enter a cave or a house). Any ideas?

I wanted to show a picture of this, but apparently I'm not allowed to.

I posted the picture at imgur.com. The picture link is /a/LQcvU

Edit: I've figured it out. Apparently it takes over visible pieces of the map above it if those pieces are still in sight of your playable character. I edited the maps a bit, and now it works fine.