SceneCaptureCube and it's Anti aliasing

Despite many tries, I am unable to get Anti aliasing in the SceneCaptureCube texture working. Any help is appreciated.

I tried MSAA, FXAA and Temporal AA in the project settings, temporal AA in the SceneCaptureCube settings on/off, SceneCaptureCube texture HDR on/off, resolution 1024 and 2048, and setting the scalability settings to epic.

In all cases the created SceneCaptureCube texture had no AA - the common camera of the game has.