Missing features in app.

I canmot for the life of me find the sentry mode settings in the Dreame App.

Similarly, live camera view doesn’t work. The loading wheel flashes for a second and then nothing.

Anyone else notice this in the app?  Dreame's response is to ship me a new mower.

I've also found that the 3D map doesn't work. It downloads then just spins and nothing happens.

Patrol mode is accessible by clicking the camera button, then the patrol button.