Page 2 goes to new topic

(I thought I posted yesterday but don’t see it under my profile. If duplicate, mods know what to do)

WP 3.5.1 with bbPress. Click topic in one forum (I.e. domain.com/general/topic) and it shows 11 posts with 10 per page. Click page 2 and it brings you to a new forum and topic.

Yesterday I tested and it brought me not to the 11th post but another forum and topic. Just checked now and it brings up a different forum and topic than yesterday.

I need to know how to fix this. I’m thinking a temp fix is to allow 20 topics per page as the site is new. I’m just hoping I can do that.

But I need a perm fix so it stays on topic.