ProSites does not register when users upgrade

ProSites does not register what level the users' usbscription is unless I manualy set the level.
When a user upgrades from free to pro they still seem to be at the free-level.

The payment is made with PayPal(sandbox), and the plugin registers that the user has upgraded in the "Subscription Information", but some places in the backend the user is still registered as "free". This also causes problems in the "Premium Themes" extension