https://www.pcgamer.com/fortnites-guided-missile-is-going-away-for-a-while/

The Fortnite guided missile that promised pinpoint death-and-destruction but became far more famous for enabling Silver Surfer-style cruises across the battlefield has been removed from the game. Despite all the fun that people were having with it, Epic said on Reddit that there's concern about the "fairness and strength" of the weapon, and so it will go back to the drawing board until the developers can figure out what to do with it. 

Epic is also rolling back a change in the 3.5 update that resulted in players shooting their own structures when peeking over them. This was apparently caused by a fix for an issue in 3.4 that impacted "a small number of players," and the rollback in 3.5.2, which is coming later this week, will restore that issue. But better a small bug than a big one, and Epic said that it will work on coming up with a proper fix for the original problem.