Is the Workshop Launch button gone?
I'm very sorry if anyone is running into this problem. We just had a quick update, which caused the browser width requirements to change a little. If you can't find the Launch button for Workshop, please try to widen your browser window. It usually only requires a few more pixels. You'll see the Launch button appear as soon as the browser window is the right width.
We're working on fixing this as quickly as possible.
Thanks for your patience.