Hello RAMWolff,

I don't know this set. Could you check that it is using G3M base UVs please? Texture transfer brush can only transfer texture from a same character with different UVs If your set is using another uv set than the base, then load a G3M with baseUV and a G3M with the uvs used in the set, apply maps to it, create new maps and apply them to the character with Base uv and transfer. Now, your maps should fit correctly to your G8M character with BaseUV applied.

Could you check?

Best regards,