Can’t read the actual property value through the REST API if the property value is not changed by the RealityHub. For more details see REST API
Such property value updates outside RealityHub may happen if the property values are updated with Blueprint logic.
Fixed
Engine Toolbar
FPS rate changes of the Engines are not updated instantly.
Fixed
Cook Manager
Projects are always cooked with the default map (under Project Settings > Maps & Modes in Reality Editor) regardless of the selected map in RealityHub for cooking.