Sorry it’s taken me so long to respond. All of my problematic machines are running Windows 7 Professional 64 bit SP1, and a fully updated Adobe CC. We have had this issue from when we first installed CC through to the latest update. That is to say, we’ve never had a version of Adobe Premiere CC that has NOT had the problem.
So, based on your information, it looks like this is somewhat limited to Windows 7 Pro. I have a contact at Adobe – I’m going to send him an email with this info and report back what I hear.