OpenGL bug on Samsung Galaxy S8

[GuilhermeGS2]

Mali GPUs drivers have the worst OpenGL support on Android, the newer the driver the worse the support. The last decent (not perfect) version was r7p0, but the last S device that supported it was Galaxy S6 with Android 5.0 or 6.0 (don't remember). Now it's only available for low/mid-end devices (my J7 for example).

There's a huge chance to this bug to be caused by bad drivers, take a look in Dolphin's forums, there's a lot of issues related to Exynos Galaxy S8 and other Mali devices. Dolphin is more complex and needs more OpenGL features than PPSSPP, so it's easier to find issues.