Membership payment options – only one of three options works

I have set up three payment options for the membership plugin, monthly, quarterly and yearly.

The monthly one works. When I click the paypal button for the quarterly and yearly options I get the following error on the paypal website.

Invalid Regular period. You must specify valid values for the A3, P3 and T3 parameters for a subscription.

Apart from the membership period and the payment all other fields are set identically. What could be the problem ?