Invisible nav nodes?

[Fishslap]

While trying to land on Mun I discovered that I was unable to create a maneuver node. There was already an orange cycle looking like an orbit of Kerbal but no node to be seen. I suspect that it might be inside one of the planets. But anyway, I was wondering how you remove maneuver nodes if you can`t find them to click on them? I couldn`t find anything in the hotkeys list I`ve been using. Has this happened to anyone else and is there some way to fix it?

[Tery215]

Next to the nav ball, there should be a green bar that shows the progress of the node. Click on the X or checkmark next to it to destroy the maneuver node.

Otherwise, try pressing TAB and shift-TAB to search for the nav node. It cycles through planets, maneuver nodes, and your ship.

[Fishslap]

Thanks for the advice!