Set functions in UWindDirectionalSourceComponent are not exposed to be called from code

None of the Set functions in the UWindDirectionalSourceComponent are able to be called from code. The functions can be called from Blueprint, but without the ENGINE_API macro, none of the functions are exposed to be called from code.

REGRESSION:
No. It was not possible to add a UWindDirectionalSourceComponent to a code class in 4.19.

1. Create a new Basic Code project.
2. Add a new Actor code class to the project.
3. At the top of the new Actor's header file, add the following line: #include "Components/WindDirectionalSourceComponent.h"
4. Add a UWindDirectionalSourceComponent UPROPERTY to the new Actor class.
   • eg:

     UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = TestCat)
     UWindDirectionalSourceComponent* TestComp;
     

5. Create a default subobject for the property in the Actor's constructor.
6. Add a function to the Actor that calls the SetStrength() function in the component.
   • eg: TestComp->SetStrength(5.f);
7. Build the project.

RESULT:
The build fails with a LNK2019 error.

EXPECTED:
The build completes successfully.