Attached my corrupted save game which crash at every load attempt. I noticed one of my duplican was cloned after coming back from space. Also I saw a duplican board a rocket that was already gone. My gantry was setup in vacum and so was overheated / broken ( but was still functioning fine with regard to letting duplican board the ship.
setup gantry in space so it overheat. disable auto repair. wait for duplican to lose to board the ghost ship.