The Meta XR plugins for Unreal Engine, including OculusXR, OculusInteraction, MetaXRHaptics, and OculusPlatform, claim to support Unreal Engine 5.8 but are actually built for UE 5.7.0. When used in UE 5.8, the plugins cause warnings about version mismatch and fail to load multiple modules, such as MetaXRHaptics, OculusInteraction, and others. The error message states 'Engine modules cannot be compiled at runtime' and directs to a log file without specifying which module. Although building the project from scratch completes without errors, the module loading failures persist. The documentation for manually building the plugins is unclear or missing.