title: c++ opengl ES 2.0 App renders only wireframe on Nvidia shield tablet, but renders correctly on other devices
body: <p>During tests of the app on my Nvidia Shield tablet it shows only wireframes instead of filling the polygons.
  Same app renders correctly (filled polygons) on my LG G6 phone, and in windows as an UWP app.
  I am using Visual Studio 2019 community to code in c++, with opengl ES 2.0.
  Looking into the debug settings on the tablet, I could not find anything like "force wireframe" or similar.
  I have no idea which part of my code I should include in this post.
  I am using android 7.0, which is the latest available for this tablet.
  Anyone had the same issues, maybe on other devices as well?</p>