The "alignas" keyword cannot be used with a USTRUCT

The alignas keyword is not usable with a USTRUCT. It can be used with a normal struct.

1. Create a new Basic Code project.
2. In the GameModeBase.h file for the new project, add the following USTRUCT

   USTRUCT(BlueprintType)
   struct alignas(64) FMapCell
   {
   	GENERATED_BODY()
   
   	int32 TestVar;
   };
   

3. Build the project in Visual Studio.

RESULT:
The build fails with the following error: error : Struct 'alignas' is missing a valid Unreal prefix, expecting 'Falignas'

EXPECTED:
The build completes successfully.