Device: Nexus 6P
After upgrading my device from Android 7.1.2 to Android 8.0.0 today, opening Minecraft PE shows a black screen (no text or graphics). After clearing the app's data the issue stopped occurring.
MCPE-25225
Upgrading to Android 8.0.0 causes black screen at startup until ShaderCache2 is deleted
Resolved
Fixed
0
Manually deleting the cache/minecraftpe/ShaderCache2 folder also fixes the problem. It seems that Minecraft PE doesn't invalidate the shader cache on OS upgrade.