Coreldraw 2019 easily collapses

I work with Coreldraw 8-12 hours every day (for the last 27 years). Since I installed Coreldraw 2019 the problems have been more than any previous version. For example; every time I select an object and then open the Fill Properties docker, Coreldraw disappears. I am used to typing Ctrl + S after every move, and definitely before I open Fill Properties. To change the color of an object I have to restart the application! I look every day for updates from Corel but it is futile. The situation is hopeless.

Is Corel reading these posts?

Windows 10 Pro on HP Z640 with Intel Xeon CPU E5-2620 v3 @ 2.40GHz, 2 processors, 16MB RAM, 64 bit