Creating Disk Pool with Amazon S3

Has anyone had any success getting S3 buckets configured with NetBackup 7.5 for cloud backup?  When I run through the Disk Pool Config it allows me to "Add New Volume" successfully, but then displays NOTHING in the "Select volumes" pane.  I am logged into my AWS account and can confirm that the new bucket *is* getting created in S3.

Why would it not display the newly created bucket for me to select?  Anyone run into this?

Thanks,

-Mike-