Authentication is needed to run /usr/bin/rm as the super user

[nickk-acc]

Something went wrong after the latest update from cinnamon. They updated something about permissions for extensions this morning and after the update the wallpaper was reset. When I try to reenable it, although it works and the wallpaper appears as it should, a window for super user authentication appears. I am attaching a print screen.

Even if I close it it reappears after some time and whenever I logout and login again.

[TobiZog]

Which Cinnamon-Version do you use?

Quick workaround to avoid the Password message: Disable the setting "Set the background image as Login Screen background" in the preferences.

[nickk-acc]

The workaround worked for now. I had guessed that it had something to do with the login screen but I had already set it to inactive and the window continued to pop up. I removed the extension, redownloaded and enabled it, ignored the pop up and went ahead and enabled the login screen background and disabled it again. For now I haven't seen any pop ups. The Cinnamon version is 6.0.4