https://www.cnet.com/news/spacex-starship-hopper-freezes-up-but-could-still-throw-fire-soon/ > Early Tuesday morning, Elon Musk said on Twitter that the first test of a Raptor engine as part of Starship had been set back by "some challenges with ice formation in the cryogenic propellant prevalves. Hopefully overcome soon." > Close-up video of the rocket prototype obtained by a local information site from nearby South Padre Island showed that everything seemed to be normal as of Tuesday morning.