I've had problems with either MakeUseOf not accepting my sign in (I'll sign in, and then it won't register), and now, it keeps saying that I am already signed in at the top of the screen, but only the comment section registers it. Contest forms, rewards etc. keep saying that I need to sign in. If I click 'Logout' nothing happens.
I have tried restarting my computer, leaving it for a time, and using different browsers (Chrome, Firefox), but the problem remains. Changing to Firefox originally solved the problem when it didn't register my sign in, but no longer helps.
The only thing I've found to get around this is to go to the ask a question section and sign in when prompted. This is frustrating, however, so if there is a way to fix this I would be grateful.