Is there really a reason to write about the problems of CorelDRAW 2019 since no one can answer? The most common incident is that Coreldraw disappears from my screen when, having selected an object, I open the fill docker. The solution for now is one: Ctrl+S all the time and opening again and again the application and the files. Hurdless...
F8 only restart the workspace, so it's only useful if you have a corrupt workspace.
Did this help you with the crashing?
Unfortunately no, there still are situations that make coreldraw to vanish fron the screen:
1) When I open the fill docker and select the color sliders window.
2) When I open a file and immediately try to select any object, instead of waiting several seconds before do it.
Another unoying things:
1) I have to wait a long time after I click to close a saved file for the file to close.
2) Despite repeatedly saving my preferences, it's impossible to finalize that I want millimeters instead of points in line thickness or that I don't want to do spelling correction.
An idea I had is to ask Corel to replace my license with the previous version. But the problem is that i already have hundreds of files in 2019 version...
No telling when the "crash" feature will be removed. Best you open hundreds of files, save back to previous working version, KILL v2019, reinstall previous working version. Wait a couple years until a new version gets great remarks, purchase at full price or purchase Upgrade Protection for every year until you see a version that has great remarks.... repeat YEARLY as long as your last breath on earth.... guaranteed income for Corel. Mission accomplished.
AFTER you have run the repair or update (download the last available for your version from their Support tab - they're good about it.)
If that doesn't work
RESET to default workspace settings by starting CorelDraw with the F8 key held down. It will ask you if you really want to reset.
This cleaned up things nicely - apparently after several versions being installed over each other, some incompatible gunk builds up.
Note that you can export your settings if you have extensive changes you could go back and forth.
If your issue is with Dockers (one or more) reset the dockers menu by the following odd path: (evidently I can't upload a picture.)
This did nothing that I could tell in my case.