I keep seeing the same posts over and over again

So, I'm digging through the reddit front page logged in. I click next and to check out additional material, but I keep seeing the same posts. I click next again and the same posts keep popping up. I go down over ten pages and see the same damn posts again and again and again.

Do they not have enough posts? Or does their algorithm really want to promote these specific posts to me? I can't figure it out. It's like 'The Front Page of the Internet' has only one page.