Hi Peeps.
New to the forum and Neon.I am having a big issue with the latest 5.11 Plasma update on Neon and also Mint 18 KDE update as well has done exactly the same thing.I have just done a fresh install of the LTS stable Os and updated the system straight away.After the update and booting back up I have totally lost my panel and right desktop click so this has rendered my computer unusable as I can't access anything.Has anyone else had this issue ? I have been using Xfce and Gnome mainly for the last few years and used KDE for a while before that but it was a bit heavy for my old laptop but I now have a Dell XPS 15 with a quad core i7 so I really wanted to try KDE again and am sadly put off by this as I do love KDE.I hope someone can help with a fix for this.

I have moved this topic to the KDE Neon Forum.

Sorry, can't even reproduce it... How about removing or renaming your ~/.kde folder while not being logged in and then log in again. Should do the trick...