It's been discussed here before, I know I have said it specifically in response to you previously at least once. During the download of the approach plates and diagrams from your computer to your USB, sometimes the program stops displaying the progress in the middle of the transfer. The transfer itself doesn't stop, just the display of the progress. Be patient, it will finish, and then the progress will correctly display for the remaining charts.
Yes, I know it's frustrating - I share that with you - but are you going to raise this same issue every update? Seriously?