Just upgraded from 16.04 to 18.04.3... pretty seamless, only had to futz with/re-install 2-3 programs and re-configure a couple of others... BUT... But... Launcher items in the panel... I cannot edit them... the pencil is grayed out??? So, in order to change a program, I need to create a new launcher, add the program, and then delete the existing one. Wha's up wid dat?

AND... and... when I create a new launcher, add program, IT is not editable either...

Do I have a setting wrong, is this a known error, etc etc???