Quest 2 headset says 'Next Up' while game runs without headset in Desktop window

[mannydather]

I'm working on a game for SteamVR and am getting issues similar to the following:
https://github.com/ValveSoftware/steamvr_unity_plugin/issues/1076
https://github.com/ValveSoftware/steamvr_unity_plugin/issues/1078

ISSUES:
No game video is coming through the headset, only audio.
The headset shows an empty floating steam window saying 'Next Up'.
I can see the game running in full screen on my PC.
The hand controllers track and interact just fine.
The headset remains on the ground as if it is not being tracked/recognized.

OTHER DETAILS:
I'm testing this on a Quest 2 headset through a brand new USB C cable.
The game runs perfectly in the Unity IDE (Unity 2021.3.4f1 Personal).
My game shows up in the Steam library with the VR required flag set.
I'm using Unity's old input system due to a plugin dependency (Curved UI).
When I publish it as an .exe file and run it through steam it acts like it can't find the headset.
the headset stays on the ground the hand controllers track fine my steamvr console outputs the following as I add/remove the headset which makes me think something in steam is paying attention to it:

vrcompositorFri Oct 04 2024 10:54:07.919 [Info] - Clearing dashboard transform because TrackedDeviceUserInteractionStarted
vrserverFri Oct 04 2024 10:54:13.347 [Info] - oculus: Prediction interval too high: 0.256231 s, clamping at 0.250000 s
vrclient_vrcompositorFri Oct 04 2024 10:54:14.202 [Info] - AddSystemBehaviorFlag SystemBehaviorFlag_DisplaySuppressed
vrclient_vrcompositorFri Oct 04 2024 10:54:14.202 [Info] - Sending focus captured event
vrclient_vrcompositorFri Oct 04 2024 10:54:14.295 [Info] - RemoveSystemBehaviorFlag SystemBehaviorFlag_DisplaySuppressed
vrclient_vrcompositorFri Oct 04 2024 10:54:14.295 [Info] - Sending focus released event

THINGS I'VE TRIED:
Reinstalling Unity.Reinstalling Steam/SteamVR.Reinstalling the Unity SteamVR plugin.Updating my graphics drivers.Enabling/disabling Direct Mode.Testing with SteamVR and SteamVR beta.Testing with cable and through wifi.Running the game through Steam as well as directly opening the executable.Running Steam as administrator.Adding Launch Option arguments to the game startup (-oculus, -vr, -steamvr, -openvr)Testing other Steam VR games (Half Life VR Mod, Kodon, Google Earth) which all run as expected.

Thanks!
SteamVR-2024-10-01-AM_11_31_45.txt