Shop listings are a weird thing

[Tea]

Whenever I change items, some things work, some things don't. In fact, everything works, except the world.bin edits. That is, only the shop in which they should appear is not working, everything else is. I started a new game to make sure there would be no problems that could have to do with save games/states, but to no avail. After opening the patched ISO in fftpatcher, I discovered the changes were in fact not even saved to the ISO. Now my questions; 1) Why? 2) Is it fixable?
I read in some older topics that LD had no problems with changing this stuff, and I feel fftpatcher is discriminating against me :c

edit: yes, the world.bin box was checked.

[Vulpes R]

Have you made sure all the correct boxes were checked when you went to apply the changes to the ISO? I know a lot of people must rely on default but sometimes FFTPatcher will fool you if you make minor changes, set some stuff back to default, etc. Hope that helps some, I'm a n00b but I had that problem before. xD