Thank you for getting in touch with your report. We’re sorry to hear that you’re having these issues. Can you please update your system setup information with specific details about your Core machine and any add-on security or anti-virus software you may be running? This will save us time and keep us from having to ask for that information.
If the behavior continues please reproduce it a couple of times, note your local date and the time it occurred, then use the directions found here and send over a set of logs to our File Uploader?
We appreciate your help with troubleshooting this. Thanks!