How to fade in C++? (Target: Mobile/Tablet)

I’m trying to achieve a simple, reusable fade-in/fade-out effect in C++.

The PlayerCameraManager->StartCameraFade function is buggy on projects targeted for Mobile/Tablet, as confirmed in this Answerhub post. I’ve found that the same is true of the PlayerCameraManager->SetDesiredColorScale function.

Is there a mobile-compatible way to fade in/out from C++?