updaterapplet > click install and it just closes?

i thought i have been using the Updater Applet, it lists updates, i check them and click ‘install’.
the dialoge window closes (back to taskbar), if i hover over it, it says updating, but nothing ever dropes form the list as if it were installed.
what’s happening?

thank you in advance,

At least the openSUSE level might be usefull to those who come to your rescue. :wink: