I've been having this problems for several months now. Pandora is stuck on "Custom" station shuffle. It won't let me select "Shuffle All", and it won't let me edit or even see the custom shuffle stations list either. I when I click on either shuffle option nothing happens, neither buttons work. This issue is present for me in both the Windows App Version, and also in the Windows Internet Browser Version. I believe the only way I found to temporarily get around it was to use the Android Mobile App, but I usually use Pandora on my Windows Laptop so that's a hassle. How to fix???