I am porting my WP8 app to Android. After finally getting the app launching and running fine, I pressed the home button then re-launched the app, but the whole screen was black. I could hear the game music, and tapping at button positions, I can hear the app responding to them, so it is running, but the screen is black. I opened the device log and found this line from my app:
[Surface] using an invalid surface, identity=677 should be 683
I searched around but found no answer on fixing it with MonoGame.