SAN ANTONIO — SpaceX is having engine trouble. Over the Thanksgiving weekend, SpaceX founder and CEO Elon Musk warned employees of a “Raptor production crisis” for the engines needed to launch the massive Starship spacecraft from South Texas. SpaceX is aiming to launch Starship into orbit for the first time in early 2022 and then run a series of test flights as steps toward carrying cargo and humans to the moon and Mars. But Musk on Friday warned that delays in production of Raptor engines could hamper that progress and lead to significant financial problems. “We face genuine risk of...