VRC SDK version: 3.7.3
  1. Set PB - enable Is Animated
  2. Move the Bones set in PB with animation
  3. Make another object follow the PB bones with Constraint
Combating all of these 1 to 3 will cause the Constraint to not work properly.
This issue did not address with VRC SDK versions 3.7.2 and below.
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VRC SDK version: 3.7.3
  1. Set pb - IS Animated to enable
  2. Move the bones set in PB with an animation
  3. Use Constraint to make the PB bone follow another object
If all of these 1 to 3 are combined, Constraint will not work properly.
This issue did not occur with VRC SDK versions 3.7.2 and earlier.
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