Tablet not going to sleep with HA companion app

I’ve installed the HomeAssistant companion app on a brand new Samsung Galaxy A9+ tablet. Everything is working, except that the tablet will not go to sleep when the HA companion app is running in the foreground. I switched off the option to keep the tablet awake when HA is running. The tablet will go to sleep when HA is not open (it’s running in the background).

Is there an option I’m overlooking?

Please do not reply that I should use Fully Kiosk, I want the issue with the HA app to be fixed.

Do you have a video feed playing?

Hole in one. Thank you!