I can confirm the issue. It's really, really strange. I had a quick look but have no idea what could be causing this. Unfortunately I'm about to leave for a 10 day holiday, so I won't have time to properly fix this.
I really hate that, because I'd love to squash this bug before I left. If there is some left to look at this, I will, else it will probably go on for 10 more days ;(
The only change I've made the last week is to switch the frontpage to HTTPS, but I can't think of anything why that would be related.
I'm really for the inconvenience