Need help confirming if vertex shading works right on my model export for approval

[Friedslick6]

Are you sure you don't want credit?

Yeah, no worries. Thank you for your contribution.
I forgot to actually add the texture-UV fallback bindings properly, so I reuploaded the revision.

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The 'vert' texture precaution is interesting. Which programs cannot render vertex colours correctly without a diffuse channel?

Also, something interesting I found. Your model correctly imports units while my Motorcycle Crash model doesn't, because Blender only correctly interprets 2 places of the unit scale's decimal value.