Fades not working on Audio Extension regions

Fades still don’t work for me (under any circumstances) on audio regions with Audio Extensions.
Is this a bug or by design? (I have no idea why this would be intentional :question: )

I have tried in Cubase both with Melodyne and SpectraLayers. Still no result when fade is applied.
It works like a charm in both Logic Pro X and Studio One.

It is extra annoying considering the fact that I quite often I get clicks at the beginning or end of an audio extension region. Ordinarily a fade would solve any click problems at the beginning or end of audio regions but… :unamused: