Disable support for OpenGLES 3.1 API. (Android Only 0 = OpenGLES 3.1 API will be used (providing device and project supports it) [default 1 = OpenGLES 3.1 will be disabled, Vulkan will be used.
Usage
r.Android.DisableOpenGLES31Support [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.