Final Fantasy VI: Restored Ability Names

Hello! I'm having a bit of trouble with this patch, so I'm wondering if maybe someone has an easy answer for me (probably not likely)...

The ROM I have is unheadered and 1.0 (MD5 is E986575B98300F721CE27C180264D890), so I am using NSRT 3.4 to apply a header. I apply the patch to an otherwise clean ROM. Everything seems fine up until I get to the boss fight with the Marshal (when you have the teams of moogles), who hits me with Meteor and instantly kills the whole party. I can get around this sorta by giving the Marshal less MP in FF3usME but I don't know if he's the only one with problems like this.

What's going on here? How can I get around it?

Besides this issue, the patch is fantastic! I've loaded in with a save from further in the game and everything looks wonderful! I'm just working on my own dumb project and kinda want to get this working, if possible.