I might be wrong.
I remember being shocked seeing Immortal in season 2. I thought Omni-Man had killed him again in the final fight in season 1; punched right through his abdomen or something. The people watching the broadcast gasped and all when it happened.
Did they just make ANOTHER clone of him? Or did he not actually die in that fight?
It’s a different universe. The first part of s2 e1 is a different universe where Mark joins his Dad instead of fighting him