I have this for a long time, It's as she wrote , station runs out of fuel , cannon changes direction ,Probably a visual bug.

It's like this all the time, Run out of fuel, transport gas to the station , go to the station, cannon view , the cannon is not visually aiming at the planet/object , infact the opposite direction.
From here, if you go to the overview, the view then resets to original position/view