Android 8+ black screen issue

Since Android 8 (some even complain with 7) my game works but there is just black screen.
I can go blindly through the menu and start the game, I can hear music and sounds but there is nothing but black screen.
I have tried many different MonoGame versions but it is always same.
I just tried with latest dev build version.

I have a lot of complaints on Google Play about this and need to fix it asap.
If someone want to see the issue in action you can quickly install the demo version

Thanks,
Endi