Editor crashes when using -xrtrackingonly (LiveLinkXR)

Development Cinematics & Media Virtual Production
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1

I’m trying to connect the VIVE Ultimate Tracker without an HMD using LiveLinkXR. Here’s what I’ve done so far, based on my understanding of the proper steps:

  • I followed the instructions in the following documentation and modified SteamVR accordingly.
    SteamVR launches without an HMD and appears to recognize the trackers:
    Using Vive Trackers without an HMD (Epic Games Documentation)
  • Enabled the necessary plugins: LiveLink, LiveLinkXR, OpenXR, and OpenXRViveTracker.
  • Created a shortcut to the Unreal Editor with the following target:
D:\UE_5.3\Engine\Binaries\Win64\UnrealEditor.exe -xrtrackingonly

From what I understand, after launching the editor with this shortcut, I should be able to connect to LiveLink and start using the trackers.

However, in practice, when I launch the editor via the shortcut and open my project, the project window appears momentarily and then crashes immediately.

Has anyone experienced this issue?
Does anyone know what might be causing this behavior?
Is there something I’m missing or doing incorrectly?

Any help would be greatly appreciated!

Version
UE5.5
SteamVR beta2.10.2
VIVE Hub 2.3.3b

2

Addendum: It’s also puzzling that you can put a shortcut on UnrealEditor. Do you start UnrealEngine from the shortcut and then start the project you want to LiveLink from the selection screen?
I thought so, so I created a shortcut to .uproject and added arguments, but although it started, it couldn’t recognize the Tracker, controller, or headset.