Hey @Partel-Lang, Hope you don't mind that I cross-posted this to a support ticket on Root-motion.com first before finding this thread. I have a compound Character (Biped "wearing" an Exoskeleton rig) I am trying to make into a VR Avatar that is set up using the Unity Animation Rigging Package. Basically its an Exoskeleton that the biped is wearing, that should track along with the movements. (The Exo has a bone connecting at the hip and constraints at the hips, knees and balls of the feet). When I add VRIK to the character, the Animation Rigging constraints get "muted" and the exoskeleton no longer follows the character. I'm really noob at rigging so please let me know if this is even the appropriate way to accomplish this or if there is some incompatability with the new Unity rigging System I should be aware of, Thank you and Thank you for making such a great asset, we've enjoyed using it!