I thought it was simply not working correctly because of the software installations I am performing, but even when I manually exit WWL, it seems to not restore the desktop wallpaper…
Also, I just noticed this too: upon booting / starting WWL, the icon in the system tray is remaining italicized (which I have set in options to do so when it has not updated) but as soon as I load the main window it goes back to normal.
OK, problem one is solved - I checked three times and it was resetting the value of restoring the wallpaper- so uninstalled, cleaned the registry, and reinstalled and it is restoring the old WP fine.
I’ll have to perform a reboot later tonight to see if the other issue I mentioned is still manifesting or not.