When I'm logged in as an admin, I see a blue bar at the top of the page, with a question mark in a circle, but no text. This is how it looks like:
And the markup is:
<div class="region region-help alert alert-info">
I guess it's some kind of alert, but obviously there's no text, and nothing I can see in any of the logs that might be related either.
Anyone knows what this might be and how to fix it?