LR Classic 8.4.1 has been repeatedly crashing on Windows 10 (1903 build 18362.418). I don't have to be performing any action and it will 'suspend' according to Win Task Manager and then shut down. The problem does not occur with Photoshop. Often, I will try to restart LR and the it tells me the catalog is in use and can't be opened (no surprise there). Thus I have to reboot only to have the problem reoccur minutes to hours later. I'm up to date on LR Classic, Win 10 and NVidia Drivers - and I have turned off the use of GPU in LR anyway. I have uninstalled and reinstalled LR and PS. I've opened a new catalog and imported the old one so I can try to work. The only thing that might be different from Adobe software point of view is that I have begun use and sync to LR Mobile and Porfolio - were I just put together a web site. I have read many suggestions on this type of issue and found nothing that resembles an answer. Help.