The displayed orbits of crafts not controlled by the player are wrong when they change SoI.
Here, the blue and purple lines are the (correct) trajectory of the player-controlled craft leaving Droo SoI. The green line, however, is for another craft currently in Droo orbit but leaving it slowly. It continues straight forever (as if it was still only affected by Droo's gravity) even though it should curve around Juno and intercept Ceylero.
@AndrewGarrison I guessed that is what was happening, but it's kind of confusing. Not to mention ugly. I understand not wanting to show when non-player controlled crafts enter new SoI (too many different lines to show, too taxing for the system, too overwhelming for the player), but showing when they leave their SoI and go to the parent one would be a good compromise IMO.