[Unity/Quest 3] Distorted controller display

Hi,

Unity 22.3.15f1
Quest 3 up to date
Meta XR sdk 63.0

I put The OVR CameraRig building block in a scene, and it works fine. but as my app is meant to be stationary (based on 360 videos), I selected "eye level" as a tracking origin type, and unchecked the "Use Position Tracking" checkbox. 

Although the controllers are displayed correctly in Unity, they appear completely distorted in the HMD.

I even tried to put the Tracked Pose Driver script set to "Rotation Only" on theCenterEyeAnchor, but it doesn't change anything.

Browsing the forums, this isn't a new problem. Did anyone found a solution ?