Security policy stuck loading

I'm trying to test the features of Intune and I've hit a few snags. I've previously set up security policy for iOS, but now I can't get back in to set one up for Windows. When I select Security Policies from the Security Centre menu, it says 'Loading...' but never progresses.

It has been this way for a couple of days. Any ideas on a way to give it a kick?

Thanks,