The jump lists accessed by right-clicking pinned apps on the taskbar have stopped working after installing updates kb4569751 and kb4565351.
When I say "stopped working", I mean that I can still left-click on a pinned app (e.g. File Explorer) and it will open correctly, but if I right-click on the icon and then try to click on any of the links in the menu which appears, nothing works:
Clicking on the recent files or the Desktop/Documents/Pictures/etc. links shows an error message window saying "The item that you have selected is unavailable. It might have been moved, renamed or removed. Do you want to remove it from the list?" but the files and folders have not been deleted or changed in any way.
If I click on the app icon to open another instance of the app, the list simply disappears and the app does not launch.
This has happened to me before on this same installation of Windows 10 when Windows updated itself and the jump lists broke. I was unable to find a solution so I just lived with it for months, when suddenly it was fixed by some mysterious Windows Update, but I have no idea which one. That fix happened about a month ago.
Now it has happened again. I tried uninstalling the two updates (see beginning of this post) which were installed on the day the issue started, but that didn't fix the issue so I decided to try the upgrade to version 2004 of Windows 10, but even that hasn't solved the problem.
Jump Lists still work in "Safe Mode" interestingly which would suggest a driver conflict. I have updated to the newest video drivers from Nvidia, but no luck.
How can I fix this issue?