Standalone Crash

After building the game and attempting to play the build, I am getting a crash error.

Fatal error: [File:D:\Build++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\Engine\Private\GlobalShader.cpp] [Line: 353] Missing global shader FPixelShaderDeclaration, Please make sure cooking was successful.

UE4Game!FDebug::AssertFailed() UE4Game!VerifyGlobalShaders() UE4Game!GetGlobalShaderMap() UE4Game!FEngineLoop::PreInit() UE4Game!GuardedMain() UE4Game!GuardedMainWrapper() UE4Game!WinMain() UE4Game!__scrt_common_main_seh() kernel32 ntdll

I have just updated from 4.10.4 and didn’t have this issue in that version.

Is there something simple that I am missing?