ROM Hack Pokemon Fire Red- Sprite change problem...

[Shorkio]

Hi!
I have one week old SCminiSD and Pokemon Fire red ROM, and I'm changing a Sprites (right now I'm changing overworld sprites).
When I put that game in SC, it freezes

. Any help?

 

[Qidori]

What are you using to change the sprites? Does the ROM run regularly on an emulator?

 

[Shorkio]

What are you using to change the sprites? Does the ROM run regularly on an emulator?

With emulator it works fine.
I use OwerworldEditor-RE

(and sometimes I use Unzl.gba

)

 

[Qidori]

You've got me stumped. Hardware is my weakness...