I've noticed that when clicking on an SCN member picture or name to go to their profile it's impossible to get back from the profile to where you came from. Browser "back" button simply does not react.
I'm using latest Firefox with Adblock. To recreate the issue, open a blog and click on the author's profile. The author's profile will open and "back" button won't do anything. If you right-click on the Back button to see the recent history you can see that profile is listed there twice, so I'm guessing browser gets stuck in an endless loop.
This started with the new profile or later, worked fine before to my recollection.