Personal Freighter gets stuck

[The Corinthian]

So I'm at the mission where you have to deliver energy cells and my freighter is just dead in space. It's loaded up with 300 ecells. It has orders to go and sell them but it just sits dead in space.

I tried docking on it, I tried just sitting on top of it in the Skunk hoping it would move, but nope, just sits there. I can't reissue the sell order and any time I try to give the ship a manual command it still just sits there, like it's confused and doesn't know what to do.

As a side note I've also noticed the space highways are now abandoned. I travel 300KM and never see another ship in the highway. I wonder if the NPC ships haven't been caught with this 'I don't know how to move' bug as well.