if i am correct, it was actually stated early on that the beta session was a doomed timeline, alpha dave said it himself, plus i think i figured out why her imperious condescension has all those powers. the dersite queen's ring. once gamzee prototyped the sprites with the dead bodies of the trolls, she automatically got their powers and abilities. correct me if i'm wrong

The Beta session wasn’t doomed, it was just a null session. They were always meant to scratch their session and merge with the the Alpha kids’ session. The Condesce developed the other troll powers because she experimented on herself and unlocked the abilities. The Alpha kids’ Black Queen’s ring doesn’t give people troll powers, it turns them invisible.