Hello.
I'm on Mac OSX Yosemite and Adobe CC 2014. I am having a constant issue with my workspaces disappearing and/or panels not opening. I can fix the problem by deleting preferences, but I'd rather not do that every time I start up. Also, for workflow efficiency, I would REALLY love for my preference to be customized and saved. This problem is preventing me from doing that.
Specifically, when I launch Illustrator, my workspace panels will sometimes have all been removed. There is nothing there. If this happens, I can add my panels manually from the Windows menu. If I do that, I can only use the panels with the panel dock expanded. If I collapse the panels and click on a panel icon, it will not open. Let me know any way I can further help to solve this issue.
Below: Essentials workspace at start up. All panels missing.
Below: After manually opening panel windows. Collapsed view. Notice Strokes panel highlighted, but not open.