Post Geno Route missing end scene?

!​!<So, Just played the Genocide Route on a fresh save (new computer), and when I said "Do Not" to Chara about destroying the world, she killed me, BUT THEN!!!

I loaded the game back up, and it's normal? I didn't get the void, and nobody tried taking my soul. So am I just lucky, or does this just happen sometimes>!​!<