No Friends upon login

When I logged in not 15 minutes ago I realized my friends panel was empty... Clicking on the messages button did nothing, clicking the clubs i am in did nothing... I could click on add friend, but trying to add a friend I was already friends with gave back the usual message.... Just a visual glitch i guess.... Restarting the client fixed the issue so no need for immediate action. It was my first startup since the missions were released this afternoon while I was at work. Benramz