Morph glitch?

Could a custom armor and custom boss combo have any effect on it? It's an odd error, so I figured anything could cause it :/

If you are referring to the moogle suit sprite change, no because the function you changed is the initialization of character properties from equipment properties.It is in no way related to morph.

If "custom boss combo" refers to an AI script, they are in no way either related to the morph status.

Best way to figure out this is to do some tracing.