OpenXR Issue

Hello,
I am currently trying to use OpenXR with VTK instead of OpenVR for VR support and I’ve run into an issue where the OpenXR initialization fails. I have tried to start OpenXR manually via the vtkOpenXRManager class, but this did not change anything. Here are the specific errors I’m encountering:

The following line is also printed repeatedly in the console:
Error [GENERAL | xrPollEvent | OpenXR-Loader] : No active XrInstance handle.

Does anyone have any suggestions on how to resolve this?

Could be the same issue I had with OpenXR SDK version 1.1.36.

As a workaround, for me it works to downgrade to OpenXR SDK version 1.0.34.

Update:
The OpenXR SDK >= 1.1.36 requires the apiVersion to be set to 1.0.x to be compatible with the 1.0 API that VTK uses.
See also my post in the other thread and my pull request for VTK.