hl2ss project appxbundle fails to run after HoloLens 2 reset and OS update in October

[vincenzocivale]

Problem Description:
After performing a factory reset on my HoloLens 2 in October and updating it to the latest OS version, the .appxbundle for the hl2ss project no longer functions correctly. Before the reset, the application was running without issues.

Steps to Reproduce:

1. Perform a factory reset on HoloLens 2 and install the latest OS update (as of October 2023).
2. Install the application using the .appxbundle for the hl2ss project.
3. The application installs correctly, but upon launch:
   • A window appears with the text "Update".
   • After this screen, the application window remains open but does not proceed.

Expected Behavior:
The application should launch and function as it did before the reset, without freezing on the update screen.

Additional Observations:

• From the HoloLens 2 WebView, it appears that the hl2ss application process is not running.
• There are no specific error messages; the app just seems to not start correctly.

Technical Details:

• Device: HoloLens 2
• OS Version: Latest version available in October 2023
• hl2ss Version: latest
• Visual Studio Version and Build Configurations: [specify if possible, e.g., ARM64, Release]

Troubleshooting Attempts:

• I’ve tried reinstalling the app and restarting the device without success.

Request:
Has anyone experienced similar issues or knows of a solution? Any advice would be greatly appreciated.

[jdibenes]

did you re-enable research mode after the reset?

[vincenzocivale]

Yes, I've re-enabled research mode.

[vincenzocivale]

I'm trying to build your fork of MixedReality HolographicRemoting, But appear the error hl2ss.pdb not found. Do you knwo how to resolve the issue?

[jdibenes]

The pdb file is in the plugin_uwp zip folder, under releases. But, if VS is asking for it then the application is crashing. Also, the remote player must be built as Release ARM64.
I was able to run the hl2ss app successfully on the latest OS build (22621.1402 October 2024).
Can you verify your OS build number and that Developer Mode/Device Portal are enabled and that the hl2ss app permissions are set correctly?