It caused production to be put on hold, and, as Ving Rhames mentioned, allowed Christopher McQuarrie to do some extra behind-the-scenes changes, but one can also see why Cruise’s co-star is concerned.
Cruise shorted the jump and hit his leg against the side of a building, which resulted in it breaking.
Like he has done for the last few Mission: Impossible titles, Tom Cruise performed some insane stunts in the making of Mission: Impossible – Fallout – including a HALO jump and climbing up a cargo rope hanging from a flying helicopter – but it was during a relatively more casual rooftop leap that he got injured.
While the movie star limped away with a moderate injury this time, doing another, bigger stunt in his advancing age for a future project is increasingly more and more risky.