However, there are variables in my preferences pane that cannot be "deleted" or removed and I don't understand why not. All other variables can be removed using the "Delete Variable" button (⦸) at the bottom of the pane to remove variables except these shown.
I also have an undeletable variable (“Variable”), as mentioned here. First I thought it was a kind of default variable, but recently I noticed that it isn’t there on another Mac.
I must apologize for not reporting that I solved my issue earlier! After deleting and reinstalling the KM app, and still having the problem, I used Chris Stone’s script (Trash Keyboard Maestro Preferences & Application Support Folder) to delete the preferences folder files without resolution. Finally, I discovered that the variables were simply both correctly and also misspelled with a trailing space in my macro that sets my wifi.
Thank you for getting back to me and again I apologize for not reporting the resolution sooner.