ATI2015 hangs computer after completing backup

After ATI2015 build 6613 completes a backup, the computer essentially locks up and the icon for Acronis True Image Monitor remains in the Notification Area of my task bar. I have read that an SSD may cause this issue. In my case I do not have and SSD. I did not experience the issue with ATI2014. I know that the backup has completed because ATI2015 sends an email to me stating that the backup has successfully completed, and the backup file exists and is readable. I am able to recover by using the Ctrl-Alt-Del keys, Sign Out, and then signing back in. Is Acronis aware of this issue and is anything being done to resolve it?