After my crash due to tagging I figured I'd rebuild all of my tagfiles manually just in case that was part of the issue. I went into the project/Organize all workspaces dialog and deleted a bunch of projects that I can rebuild later. Then I tried to select one of the other workspaces I had left and click the Open Workspace button. That button didn't do anything. I closed the dialog out and reopened it and it still doesn't seem to work. I closed and reopened SE and the button still doesn't work.