@qdrj, I took an old device and ran it. You can see what's going on from the video. This device supports WebGL (as I remember) 'cause it flickers in WebGL mode only (in Canvas all is fine).   As I use Phaser I can say what should be done for Phaser only.   When you create your game variable set preserveDrawingBuffer: true. That's the only feedback I can give you for now. By the way, you can see that fps is slow. No worries, it was quite fine before. Just many t