Ive set it up correct, but if you input starved on rockets, the spaceship never leaves, thats a bug. If its set to leave after xxx, is not working. Everything is green, but the ship NEVER leaves.
basically you can just use your space ship in manual mode, its impossible to have it leave under any situation (automatic). (if not enough materials to build rocket or not enough materials to deliver to space)
Please make it so that e.g. leave after XXX is always obeyd.
Example train... the train also wouldnt wait infinite just because one arm is swinging back and forth, it will leave after its given time. When rockets request stuff, and ship is leaving because of "leave after ....", they could simply stop the request and throw the rest back to the logistic network. 
