When it comes to time travel in the Marvel Cinematic Universe, fans will always have something to debate -- and rightfully so -- thanks to Avengers: Endgame. That movie created conflicting rules regarding space and time to the point where the Russo brothers and the writers (Christopher Markus and Stephen McFeely) never settled on one cohesive vision in interviews after.
Source：https://www.cbr.com/loki-season-2-avengers-endgame-plot-hole/
