Happens to me as well and I'm on IO.This is just a very minor problem, but anyway thought to mention it. Ever since the new styles have been implemented (I think since a few days only, is it a Xenforo update or a style update by the staff?) whenever I click on a link or refresh a page, I briefly see the red square above the 'Alerts' link indicating new alerts. When there are none, it quickly disappears, it's only there for a split second. Still, it's a little distracting as every time I think: "Oh, a new alert? Oh, no..."
It seems like a glitch as before the new style was activated, that didn't happen.
I'm on Windows Chrome and use the 'Premium Style' (the light one) if that makes a difference.
And the mobile header search function doesn't work on mobile.
Switching to premium, the search function on mobile works.