Nikki's Smash Ball not rendered correctly

[zrksyd]

The Smash Ball from the Assist Trophy Nikki (found in assist/nikkiillust3/) does not render correctly, although Nikki's other drawings seem to be just fine (the dinosaur in the screenshot is assist/nikkiillust1/ with the same material). I included the vanilla files for you to investigate.

nikkiillust3.zip

[ScanMountGoat]

They both use the same shader, but the dinosaur has colorSet1 set to black. The RGB texture appears to be some sort of mask for the pencil effect after glancing at the shader. This is one of many unique uses of the "diffuse" texture, so it's not a priority to get working at the moment.