Power manager unable to lock screen while xflock4 can

I am using Arch Linux with Xfce and the cinnamon-screensaver. Before i have been using light-locker and everything worked fine. However, since i switched to cinnamon-screensaver the xfce4-power-manager fails to lock the screen. Whenever it should lock the screen, for example when i press the keyboard shortcut for suspend on my keyboard or when i close the laptop lid, i only get the error message that "None of the screen lock tools ran successfully".

This happens even though xflock4 & xfce4-session-logout --suspend can lock the screen perfectly well when run from a terminal or via the whiskermenu.

I have set cinnamon-screensaver-command --lock as the preferred screensaver as described in the arch wiki like so:
xfconf-query -c xfce4-session -p /general/LockCommand -s "cinnamon-screensaver-command --lock" --create -t string

xfce4-power-manager -V reports as version 4.16.0