Gaby,
I really must apologize for the lack of communication. I'm new, and I was hoping to have some more useful information prior to responding. Unfortunately, I do not have anything useful yet, but I am working on it.
I am able to recreate the problem you are experiencing, but have not been able to determine the root cause yet. I am opening a bug, and will update you with progress.
Additionally, when you are successful in deploying a VM on NetApp-stored (but not NetApp managed) primary storage, what is the scope for that primary storage?
Dan