VR Expansion Plugin

i have some issues using plugin in 4.27, when i open plugin template project, and choose play as client In VR Preview, And I Already Turn off the Run Under One Process setting,My Camera fallen on the floor, AND I can’t Change My view Through my Oculus HMD, i just stuck in there, and i can’t figure out. Does anybody know how to fix , thanks a lot! Play standalone&Play as Listen Server is Worked Properly