I have a similar problem. Today I signed in and I'm not able to change the selections for my custom shuffle. Not all of the stations are selected, however I did not select some of the stations that are playing today in the shuffle. I'm not able to take any stations off of this shuffle.
I can't pick the exact stations that I want to be in my shuffle. It picks all of the stations even though they are not all picked. When I try to unselect a station it unselects all of the stations. This started happening about 6 months ago. What can correct this issue?
Our engineering team is aware of this and working on it. Please check back on this thread for updates.
Thanks for your patience in the meantime!