[Plugin: Yet Another Related Posts Plugin] Only 1 posts shows up

Hey guys,

Hopefully you can help me.
I’ve installed the latest version of Yarpp. Unfortunately it only displays one related post, although there are far more than 10 possbile posts.

Do I have to alter the threshold or did I miss something 🙂

hopefully you can help me. Would be so great!
thanks a lot.

best,
Daniel

http://ww.wp.xz.cn/extend/plugins/yet-another-related-posts-plugin/