Missing some textures and lightmap on HUAWEI P9

Hi,

I’m trying to pack architectural visualization to google vr app, on UE4.12 GitHub version. ( same issue is happening without Google VR plugin )
App is packing OK, installing etc. But when i run it on HUAWEI P9 most textures and light info are missing. On my HTC M8 mostly is good except of some textures are distorted.
When i try to pack app from 4.11 everything is ok, but google VR won’t work on this engine.

Any suggestions what can causes such issues?

HUAWEI P9

HTC M8

Ok, i manage to find solution. Now everything looks great ^^.

I added +CVars=r.Vulkan.UseGLSL=0 to Android_Mali_T8xx DeviceProfile in BaseDeviceProfiles.ini in engine config folder.