Desktop settings messed up at shutdown

[marli]

I started a new thread for this issue, as this thread is filled with quite a lot that did not solve the problem

Xfwm4 frequently fail to start at login

After an system update in February xfmw4 fails to start if the file .config/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml exists at login. This applies to every userprofile, even newly created ones. If the file is removed before reboot/shutdown, xfwm4 starts up fine. (I suspect it sometimes dies at sleep/suspend, but most of the time it doesn’t.) Is there any way to revert all packages to the versions that were installed prior to the system update in February? (and uninstall those that were ne…