in Developer Settings GPU and MSA both are Enabled... I try Changing Resolution and Things But No Luck... Same Black Screen in Recorded Video...https://youtu.be/W4m60OEZ7a8 sorry I meant developer settings have a look, you can try changing resolution too or bit rate or sound's bit rate it's a bit irrelevant but idk what else you could try, I don't have any serious problem with that app.