Recall that the spin components of a spin-entangled pair do not exist until one of the pair undergoes quantum observation, at which time both of the pair immediately obtain quantum random opposing quantum spin components.
Alice and Bob ceremoniously split a pair of spin-entangled electrons. Alice and Bob each carry their respective entangled electron along with them on a trip in their respective spaceships. Each pilots their craft to a separate previously-arranged location and velocity (inertial reference frame.) These inertial reference frames have been selected such that, observed locally in Alice's inertial reference frame, her time tau precedes time tau in Bob's inertial reference frame. And observed locally in Bob's inertial reference frame, his time tau precedes time tau in Alice's inertial reference frame.
At her local time tau, Alice observes the component of her electron's spin parallel to the galactic axis of rotation. Observing her electron before Bob observes his, Alice simultaneously breaks her electron's entanglement and observes its spin to be oriented galactic North. At time tau in his reference frame, Bob also is first to observe his still-entangled electron. Bob also observes the component of his electron spin parallel to the galactic axis. As luck would have it, simultaneous to breaking its entanglement, Bob also observes his electron's spin to be oriented North.
After making these quantum observations, Alice and Bob radio their results to each other. Much later, when the transmissions arrive at each others' spacecraft, Bob and Alice are both surprised to find that they have obtained conflicting results.
How may this contradiction be resolved?