In the meantime, please ensure you have the latest updates for Corel DRAW X7. Help --> Updates will allow you to check for updates in the program. We also encourage to contact Corel Corporation regarding this issue. They would have the latest information on how to resolve this issue. Their Live Chat support is available during normal business hours at http://www.corel.com.
We will keep your support ticket open as we do not have a definitive resolution to this issue. We will provide suggestions for you when we have more information.