I am also experiencing this issue when I open up software-properties-gtk via applications menu. Additionally it crashes when I try to change the download server. I am not asked for password at any time.
This issue doesn't happen if you run the software-properties-gtk via terminal as root.
I am also experiencing this issue when I open up software- properties- gtk via applications menu. Additionally it crashes when I try to change the download server. I am not asked for password at any time. properties- gtk via terminal as root.
This issue doesn't happen if you run the software-