Final Fantasy Hacktics

Don't know if I didn't save it properly or what, but I changed the type, to no avail. I thought maybe the issue was me replacing important characters, such as Larg and Mustadio, but I just replaced a Male knight, and the sprite not only had issues upon attack, but was pitch black, with no color. Some of the sprites have arms dangling in the air, and I'm lost. Am I supposed to leave CDMage open when I start FFT? I've been closing out of it every time.

Hi, I just recently put some custom sprites into my game, and when they attack, they disappear. I don't know if I messed up, or if this is supposed to happen. Thanks in advance.