issue #364 validate UV indices on export
issue #364
validate UV indices on export

zacoxicompton/ExocortexCrate,ma55acre/ExocortexCrate,ma55acre/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,ma55acre/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,zacoxicompton/ExocortexCrate,zacoxicompton/ExocortexCrate,zacoxicompton/ExocortexCrate,zacoxicompton/ExocortexCrate,Exocortex/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,Exocortex/ExocortexCrate,Exocortex/ExocortexCrate,Exocortex/ExocortexCrate,zacoxicompton/ExocortexCrate,Exocortex/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,ma55acre/ExocortexCrate,Exocortex/ExocortexCrate,SqueezeStudioAnimation/ExocortexCrate,Exocortex/ExocortexCrate,zacoxicompton/ExocortexCrate