Hi have create an apitrace, you can find it here: https://drive.google.com/file/d/0B3-ikYPrROroM3M3SFM4NGd4c0E/view?usp=sharing I noticed something interesting. The trace slows the rendering of the map down. What I perceived previously as "flickering" became kind of an "animation". The map is shown an initially nearly "correct". Then it fades and most of it becomes darker and darker till it becomes as in the screenshot. I can create some screenshots, if they are helpful.