Any news? Still with the same problem:
LogOVRPlugin: Error: [XRCMD][failure] [XR_ERROR_FORM_FACTOR_UNAVAILABLE]: xrGetSystem(instance, &systemGetInfo, &systemId), arvr\projects\integrations\OVRPlugin\Src\Util\CompositorOpenXR.cpp:2086 (arvr\projects\integrations\OVRPlugin\Src\Util\CompositorOpenXR.h:302)