Passing an Enum as a UFUNCTION parameter will fail compile without explicit reference to the enum defined class

If an Enum is defined in ClassA and ClassA is included into the Project.h file, having a UFUNCTION in ClassB that takes the enum as a parameter will fail compile. Only by adding an include statement for ClassA inside of ClassB will the code compile

This is inconsistent with a non-UFUNCTION or UPROPERTY which will compile without issue.

1. Open UE4 Editor (any project)
2. Add two classes based on actor (NewActor1 & NewActor2)
3. Add include statement for NewActor1 into ProjectName.h
4. Add the following UENUM to NewActor1.h

   UENUM(BlueprintType)
   enum class ETeam : uint8
   {
   	None        UMETA(DisplayName = "None"),
   	Players        UMETA(DisplayName = "Players"),
   	Neutrals    UMETA(DisplayName = "Neutrals"),
   	Enemies        UMETA(DisplayName = "Enemies")
   };
   

5. Add the following UFUNCTION to NewActor2

   UFUNCTION(BlueprintCallable, Category = "AmmoReserve")
   bool CanDamageTeam(ETeam Teams);
   

6. Compile

Result:
Project fails to compile by saying "Unrecognized type 'ETeam ' - type must be a UCLASS, USTRUCT or UENUM"