Not sure if this is required to fix or in the design, but I noticed that when I had an Odyssey Gravship parked next to a docking clamp it came with the SoS2 ship during orbital movement. But when I tried to move the Gravship it starts its movement from the position where it had docked originally to the SoS2 ship. Maybe there's a hook at the beginning of the Gravship ritual that can be used to update the starting position?