Edit: restart the game to fix.
I have a ship I designed that is launched in two parts and then is finished in orbit by docking them together. It's really cool and even has a locking system to make sure it's lined up but I am having a problem using flight planning with it once it's docked. I can make maneuvers, but then the maneuver node does not appear on the navball. Also, the thing that pops up saying "Maneuver in 'x time'" and burn and Delta V doesn't appear. Lastly, it does not show my periapsis when I am approaching a moon or planet, or target tracking closest approach. I will include some screenshots. If there is something trivial I am doing wrong, please let me know. Or, if there's any mods to fix this that would be good too.