I posted in the software thread, but this one is more appropriate. We have now had the rear screen stay on every time I have taken the kids out of the car and twice when my wife went for an evening joy ride. I have tied the issue to plugging in the charger.
When my wife went for a drive last night and parked in the garage, everything turned off as it should. I plugged the charger in 10 minutes later and the rear screen kicked on.
The good news is I have a workaround that has been successful every time. Unplug the charger, get in the car, buckle up, put the car in gear, put it in park, unbuckle, get out, close the door, plug the charger in, lock the car via the app.
A couple of the steps mat not be necessary, ie. put it in park then unbuckle instead of just unbuckle or lock the car manually instead of letting it lock automatically, but this is what I have had success with and consistency is key to any successful sequence.