When in VR the entire model flashes on and off and never settles. this is not the same as two materials being on top of eachother. the entire model is unusable when in vr. If i turn off VR, everything is fine in the window. I am not really sure what is happening.
I have video but it is restricted from uploading. see the link below.
HTC Vive - fully updated steam client & Steam VR. no beta opt-in
GTX 1080 driver version 398.11