Meta Avatars Hands gripping controllers look unnatural. How to fix in Unity?

Hey everyone,

I’m working on a VR multiplayer project using Meta Avatars with Photon Fusion and Meta XR Building Blocks in Unity, and I’ve run into an issue with hand realism.

Current Setup:

• Using Meta XR SDK (Building Blocks)
• Avatar spawned via Networked Avatar (Fusion)
• AvatarSDK → OvrAvatarEntity + Sample Input Manager (Standalone mode)
• OVR Camera Rig assigned correctly
• Controllers tracked and avatar loads fine

Problem:

• Avatar hands appear and track correctly
• But grip looks unnatural — like the controllers are “stuck” to the hands
• Fingers don’t wrap properly around the controller
• No subtle finger behavior (like index resting on trigger or thumb on joystick)
• Looks very different from Meta Quest Home environment

What I’ve Tried:

• Assigning OVR Camera Rig to Sample Input Manager
• Switching Body Tracking Mode to Standalone
• Trying OvrAvatarCustomHandPose (but skeleton is runtime-generated, tricky to bind)
• Adjusting controller transforms manually
• Testing OVRInput values (trigger, grip, touch — they work)

Questions:

1. How do you achieve realistic controller grip with Meta Avatars?
2. Are there any recommended workflows or examples for “Meta Home–level” hand realism?

Would really appreciate any guidance, sample setups, or best practices 🙏
Thanks!