This post is several years old, and it seems there's still no solution for those of us randomly having the problem. I have had a Pandora Premium Family plan for years, and have many custom stations seeded from a single song. I used to be able to add variety to any of them, any time I wanted to, using the "Add variety" dropdown option. Now it seems like only a handful of my stations have that option, and the only way I can curate reliably is with thumbs, which is not ideal. For example, in the screenshot below is my "Chill Holiday Radio" station, which as you might guess, I only look at around this time of year. It was created in 2017 and manually seeded with a single song. I would now like to add variety, but I'm no longer able to make any changes other than with thumbs. The "Edit station" link is greyed out on the Now Playing page, and the "Add Variety" link is simply gone. Any suggestions? Also, why are there so many differences between Playlists, Collections and Stations with regard to editing capabilities and UI changes? It's so hard to keep up!
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