VR PIE with Oculus - Editor Hangs on Level Load (on 2nd+ Launch)

Loading a map while in VR PIE hangs on 2nd+ play

Does not occur when Oculus plugin is disabled.

Does not occur in packaged project.

A nonVR PIE will reset this behavior.

Additional info from user: On a later test I realised that I could do a 'vr.bEnableStereo 0' just before loading the map and that would avert the freeze. But as soon as I reversed that command after the load then I got the freeze.

1. Open a project in 4.18, 4.19 or Main
2. Find or create a map to load into after PIE
3. PIE in VR Mode (Actually putting HMD on head optional)
4. Use console command "open yourchosenmap" -> Observe no hang
5. Exit VR PIE, Launch VR PIE a second time
6. Use console command "open yourchosenmap" -> Observe hang