Not sure if this has been reported before, but thought I better mention it in case it has anything to do with some of the other bugs being reported in ACF5 Pro. There’s a bug between ACF and the Ithemes Exchange plugin. At the moment an Ithemes product lists all ACF field groups, not just the ones assigned to the post type. Nothing happens if you click on a tab for a non assigned field group.
I can confirm that this is happening to me as well. Even when setting invalid rules on the field group (e.g User Role is contributor when logged in as admin, Post Type is not equal to “Product,” etc.) all field groups are still shown.