The 2.7.1 update focused on critical bug fixes and stability for the Photoshop, Lightroom, and Capture One plugins: Dehancer Blog Resolved Black Image Issue:

: Fixed a recurring bug in the "Profiles Update" startup dialog that previously prevented some users from accessing the latest film stocks upon launch.

Add a white layer mask to the Smart Filter. Paint black on the mask to remove grain from skies or smooth skin (where film grain is undesirable).

– I'd be happy to write a legitimate, helpful article covering: