Final Fantasy VI: The Redemption "Translation"

I'll try to explain it the best I can, and Aegis can correct me if I'm wrong...

I gave him my GBA Script and my restored ability names patch (moved to the F2 bank) and he then applied the dialogue hack in FF3usME. The script imported fine, but when he tried to make changes to the newly imported script inside FF3usME, it gave him an error saying not enough bytes, and showed a negative number next to the bytes remaining. He also checked to make sure the hack was still applied and it was. Here is a screenshot he sent me:



I tried recreating this but was unable to :/