No change in Subscription Level after paying in paypal sandbox mode

Hi guys,

i installed Membership and set up a Subscription via Paypal in sandbox mode. Everything works fine except: After successfully paying in paypals testmode, i get redirected to the /welcome page and get greeted as new Paid-Member but the status of the userprofile doesn’t change to the higher subscriptionlevel (can’t see the hidden content). (i only want to offer subscriptions to logged in User so i am registered in WP/BP already)

is that “normal” or am i missing something? Does the plugin notice the sandbox-paypal-payments or only live ones?