UE4 OpenXR Headset Render Target loses individual eyes?

[star-sri]

On version 12 of business streaming, I had been having a fatal crash in UE4 while using a component a coworker wrote. I switched to the beta branch, and on v1.13.4, it no longer crashes! It does this:

Oculus OpenXR:

HTC Focus 3 with VIVE Business Streaming and SteamVR:

Where did the two separate eyes go? Obviously something is wrong...I think I saw this once with a Pico Neo 3 over SteamVR, but I haven't been able to reproduce. This happens EVERY TIME with the Focus 3.

Clearly UE knows there are two eyes, as you can still see the ‘lighting needs to be rebuilt’ message in two locations. I’m using the stock VRPawn with no changes. Also, once this happens once, it seems to persist until I close the editor, even on levels that don’t have the custom components.

What causes this effect? Is this something in the VBS OpenXR stack, or is it all on the UE side? Thanks for the help.

Edited November 17 by star-sri