I have just realised that membership pro is not saving any of my plans when I select the categories in "Articles Restriction Settings". It used to but now that I have much more articles and categories its not saving any of the new ones selected so that users can register to view them. Help with this will be appreaciated. Thanks
That might related to PHP settings on your server. Please submit a support ticket sending us super admin account of your site so that we can check the PHP settings on your site and give you instructions to solve it (you might have to contact your hosting provider to change PHP settings if needed)