Enabling Point Cloud support for AR plugin causes engine crash.

Enable Point cloud support for AR plugin. The engine will crash on restart. This plugin works in previous versions like 4.22, 4.23, 4.24

Crash Log:
Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Engine/Private/ShaderCompiler/ShaderCompiler.cpp] [Line: 2395] Failed to compile default material /Engine/EngineMaterials/WorldGridMaterial.WorldGridMaterial!

Platform: Windows 10