Steam VR Skeletal Data Errors in Unity for Pico headsets

[Simeon-kana]

When I press Play in Unity and play with my Pico 4 Enterprise VR headset, I get the errors below in the console.
(I have also tried to play in Unity with a Rift S VR headset, which causes no issues.)
This problem has been happening for at least 2 weeks. Since Steam VR update 2.8.6.

I am using Pico's Business Streaming version 1.2.1.1 (latest) and connect via USB.
In Unity, we are using Steam VR plugin version 2.8.0.

Errors:

• [SteamVR] GetSkeletalBoneData error (/actions/XRStressjam/in/SkeletonLeftHand): IPCError handle
• [SteamVR] GetSkeletalSummaryData error (/actions/XRStressjam/in/SkeletonLeftHand): IPCError handle

I have tried the following things:

• Manually Re-created the Actions from Scratch
• Reset SteamVR’s Input Bindings in Steam
• Checked proper initialization of SteamVR Actions in our code
• Checked Project Settings for Action Asset Path Conflicts. (Which are none.)
• Rebuild Your Input Action Sets. (Deleting Action Sets and regenerating them)

Any help would be appreciated.