I just purchased a Studio One 3.2 Professional license. I installed Melodyne through the installation menu and registered it via the Celemony Site. It works and I can use it as a regular 3rd Party plugin like in other DAWs. When I try to edit events via ARA (select Melodyne in the event menu) S1 asks me to install Melodyne. In the installation menu it is still not registered as installed.
I use a MacBook Pro 13 2011 with 16gb ram and OS X Yosemite.
ARA is activated in the S1 services.
Thanks for your help!