[bug issue] Display issue in Unity - the middle view of VR is not shown in Unity's game view

[Sangsun-han]

Before update of SteamVR 2.0.10, The middle view of the VR headset was shown in game window of Unity. However, After the recent update of SteamVR 2.0.10, the middle view of the VR headset is not supported anymore and only shows as the each eyes displays. Even I used OpenVR Loader (which based on the SteamVR SDK from Unity asset store) and OpenXR, the display issue still happens. Farther more, when put extra camera in a scene for the monitor, it look working Unity editor's play mode (which shows extra camera's view on the monitor). However after the building the project, the monitor shows the only view from the one eye display. I know the explanation itself is oversimplified but please check whether view system for middle eye has changed.