I've had this issue for a while now when using combine meshes with the unity avatar integration. I figured it would be resolved with avatars 2.0 but since that's not available yet i'm wondering if anyone has encountered this before and been able to fix it?
See the above image. It looks like the alpha mask is being misaligned or the incorrect mask is being loaded in upon avatar initialization. It doesnt happen every time, but almost every other time i load in avatars.
-create a bunch of avatar GO's in a scene
-load in a oculus ID so as to not use the default avatar
-make sure combine meshes is checked
Using unity 2017.3.0f3 and latest avatar, utilities and platform integrations