So I'm talking purely in cinematic lore here, no gameplay purposes:

So in the RETAKE cinematic we saw Phoenix/Yoru (prime earth) vs Viper/Jett/Cypher (alt earth) and Phoenix was seen defeating Viper with a shorty which I'm assuming killed her. Yet later in the SHATTERED cinematic we see Reyna (prime earth) fighting Viper (alt earth). I thought Viper from the alt earth was dead so why is she alive against Reyna there?