DisconnectReasons

const val ENGINE_DETACHED = 2: Int

Wallpaper service detached from the engine, which is now defunct. The watch face itself has no control over this. Usually in response a new InteractiveWatchFaceClient should be created (see WatchFaceControlClient.getOrCreateInteractiveWatchFaceClient).

const val ENGINE_DIED = 1: Int

The underlying engine died, probably because the watch face was killed or crashed. Sometimes this is due to memory pressure and it's not the watch face's fault. Usually in response a new InteractiveWatchFaceClient should be created (see WatchFaceControlClient.getOrCreateInteractiveWatchFaceClient), however if this new client also disconnects due to ENGINE_DIED within a few seconds the watchface is probably bad and it's recommended to switch to a safe system default watch face.