Malfunctioning sync with Calender

Hi!

I've been using Calendar to subscribe to various calendars for a while. Recently I updatet my iPad to iOS 7. (Thoug I don't know if that caused the problem, because I just got my iPad..)

Now everything works fine with Calendar. My calendars sync perfectly. Only those that I have a subscription to, won't show up on my iPad. They show up perfectly fine on m Mac..

Some help? 🙂

Have a good one!