Smart object mask exported as channel only the first time

Nik Collection
1

Hello,

I have a scenario where I wanted to apply Pro Contrast to a certain part of the image.
I used PS to select the Sky but the selection wasn’t perfect, since it included clouds that belonged to the mountains and not to the sky itself.
I wanted to refine this selection using U-points.

  1. I opened Color Efex, loaded Sky mask from PS
  2. I imported loaded mask of the SKy
  3. Added U-Points to exclude unwanted clouds and protect wanted sky
  4. I applied effects as Smart Object + Include Plugin masks

I wanted to refine the mask a little bit and went back to edit the mask but:

  • The option to include Plugin masks was grayed out
  • After hitting “apply”, the mask was not exported as channel