Thank so much for your kindness! Fortunately a Graphtec customer service tech was able to help me troubleshoot this mystifying problem. It was a lot of testing and ruling out, however, ultimately the issue was narrowed down to the either the camera or USB ports either in the hub or laptop. For my situation it turned out it was the USB port on my laptop that is dedicated to the cutter. I replaced the laptop and now everything is working as it should!