Can't open *.fm or *.book files using double-click in Windows Explorer
This started when I upgraded to FM 2019, Update 2. Before it worked fine.
If I use Windows Explorer (Win 7) or File Explorer (Win 10) and double-click on a .fm or .book file, nothing happens. If Frame is closed, it doesn't open. If Frame is running, the document or book doesn't open. The file association is set correctly. I have checked other file formats, and all of them open in the designated default programs, including Adobe, Photoshop, Visio, Excel, Word, PowerPoint, and Notepad++.
If I right-click on the file or book and choose open with Frame 2019, it opens. I can, of course, open from within the program. This is a loss of convenience more than a hard stop, but it's very odd.
In addition, the problem I was having with the character palette has modified since the upgrade to Win 10. When running FM2019 Update 2 under Win 7, I couldn't open it or the Hex Input at all. Since the upgrade to Win10, I can open both, but each close within about 20 seconds or maybe less. Deleting the preferences folder appears to reset things for a short time, but I don't have the time to re-set up my environment every few days.
All the display drivers are up to date.
This seems to be peculiar to my system. My coworker is running Windows 10 and Frame 2019, update 2, and is having no issues with this. Our corporate technical support team has tried everything it knows but suggest that it's time to consult Adobe.

