Unity3D higher then 2022.3.14

[jamray747]

When building for Android after upgrading to 2022.3.16, you will need to add "OVR_ANDROID_MRC" to compiler flags, to avoid following errors:

Type '[Oculus.VR]OVRExternalComposition' has an extra field 'renderCombinedFrame' of type 'System.Boolean' in the player and thus can't be serialized
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Type '[Oculus.VR]OVRExternalComposition' has an extra field 'audioListener' of type 'UnityEngine.AudioListener' in the player and thus can't be serialized
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Type '[Oculus.VR]OVRExternalComposition' has an extra field 'audioFilter' of type 'OVRMRAudioFilter' in the player and thus can't be serialized
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)