After installing Meta XR All-in-One SDK 203.0.0 in Unity 6.3 LTS with XR Plugin Management 4.5.4, OpenXR API version mismatch warnings occur. The warnings indicate that OpenXR Features, specifically Meta XR Feature and OculusTouchControllerProximityInteraction, target an API version with a patch version lower than the recommended 1.1.54, causing the version to be ignored. The exact warning message states: "This OpenXR Feature targets an API version with a patch version lower than 1.1.54, which is the recommended version for this package."