Odd issue, one membership level can't get access to /account/

I'm testing out the Membership plugin for a client and I have an issue that one of my membership levels (Premium) doesn't have access to http://www.exampledomain.com/account/ (it seems to be protected content)

I have three access levels, "Open", "Standard" and "Premium". They all have URL groups and Premium has a Positive rules to have access to Everything - however by default, I seem to have been locked out of /account/ (although my Standard is working good)

Is this something I have done?

I'd appreciate some input, thanks.

Callum.