I tried to switch out Ethan in the Humanoid Animation Recorder sample with a custom Avatar. I followed the directions in the manual to the best of my knowledge. This is the error it gives me.
NullReferenceException: Object reference not set to an instance of an object
AnimatorAvatar.Start () (at Assets/NuitrackSDK/Tutorials/Motion Capture/FinalAssets/Scripts/AnimatorAvatar.cs:18)