Often times, after you load into a saved game, you are stuck. Pressing f12 would not unstuck you. "Enter" key does not bring up quick action menu. You cannot talk to any passing NPCs. This only occurs sporadically, not every time. I would say around 30% chance of occurring. But loading save in world map mode, your ship is always stuck. The only way out is when a passing ship "bump" you out. Not sure if I am the only one experiencing this.