Hello, Everyone. I'm sorry for starting a topic while still so new to the site but I really am at my wit's end with this problem.

I am trying to change some graphics in Fire Emblem 4. In order to do this I used Lunar Expand to extend the ROM from a 4MiB Hirom to a 8MiB ExHirom. When I open the ROM in a debugger (I'm using this fork of bsnes debugger), the new ROM sections appear where they should in the ROM space. However, they do not appear in the CPU bus space. I have checked at $40:0000 and $C0:0000 in the CPU space but these sections just repeat the data at the start of the ROM.

Is it possible to access the new data?