I deleted the parent theme, and downloaded it again – now it works! Thanks, must have done something in parent files…
But the thing is that I have built another child theme on the Adapt Theme – and that site doesn’t have the same issue. So it must have something to do with my child theme… But I can’t find the problem.
Yes, it works when I switch to Twenty Twelve, and when I switch back to my theme it doesn’t work . again.