I'm running LM cinnamon 20.3. I've recently begun experiencing an issue where selection of various menu setting configurations no longer launches the dialog to make changes. Specifically, when I try to select "Power Management" or "Sound" under the LM menu button, nothing happens. I have tried clicking the panel -> Troubleshoot -> "Restore all settings to default" but that does not fix the problem. I've also tried running "gsettings reset-recursively org.cinnamon" with also no luck. I ran "cinnamon --replace" but it hangs after a minute, crashes cinnamon and I need to ctrl-shift-F1 to get to a terminal to reboot. While can tweak values using dconf-editor, it doesn't solve the issue that something with cinnamon is broken. Any help is appreciated! Thanks.