Like clicking one's avatar in the toolbar, as opposed to hovering and clicking 'Your profile page' in the drop-down menu? Or clicking 'Your account' in the Quick Navigation pop-up menu? At the Forum software developer's board there are warnings about bugs that make some functions fail to work. These, I think, are examples of that. But they appear to be minor and, apparently, not considered worth fixing. Which I'd agree with, so long as security isn't compromised.
So the 'issue' being either displaying non-functional links, or not giving information as to why they're non-functional.