FFV Battle Windows

I was editing the text window graphics, when I noticed that in battle scenes, the top row of pixels for the menu windows was missing. So I looked at the tilemap for battle scenes in BSNES Plus and saw that there was an extra row of tiles in the battle background duplicated from the last row, and that the top row of pixels for that was being drawn over the top row of pixels for the menu windows. I then decided to try removing the bottom duplicate row from the tilemap using the memory editor, and it worked until the battle ended.

So I was wondering how, if at all, I could stop the duplicate row of battle background tiles from being drawn to begin with.