Rotation Constraint with Avatar does NOT work on first person camera and mirror.
It works correctly on:
  • unity editor
  • first person perspective
  • other person perspective
  • other person looks at my avatar through camera or mirror
It does NOT work correctly on:
  • I (first person) look at my own avatar through camera or mirror
I found this bug when im using these SDKs:
  • VRCSDK3-AVATAR-2020.09.25.00.08_Public
  • VRCSDK3-AVATAR-2020.10.28.15.58_Public