I had the same problem with the other versions of LockOn and i linked it to the map screen, if you enabled the map screen in game and then repeatedly accessed from the cockpit then it would reproduce this problem, it stands to reason if you were using the editor then it is posssible that this same problem has not gone away with the latest patch, i cant speak from experiance regarding the latest patch as i have yet to find time to try it, But check this out dude, try enabling the map screen in game and keep accessing it while flying and see if you can recreate it,
Peace.