The Meta Platform SDK (version 205) fails to function correctly in the Unity Editor when domain reload is disabled. Specifically, when exiting Play Mode, the SDK's Core class retains its initialized state, but the CallbackRunner GameObject is destroyed. This leaves the SDK in a broken state, where it believes it is initialized but cannot process callbacks. As a result, subsequent SDK requests fail due to the missing callback pump. A workaround involves manually detecting the missing CallbackRunner using FindFirstObjectByType and recreating the 'Oculus.Platform.CallbackRunner' GameObject with the CallbackRunner component at startup to restore SDK functionality.