I have a single pages and a one page that lists all of the single pages. On the overview page you can like each single page with their url. And of corse you can do the same when you are viewing a single page.

My issue is very strange. Most of the pages that I would like show up on my timeline. But then there are some that don't show after I click like, not even if I click on "Post to Facebook".

This page will not show in a users timeline if liked ore "Post'ed to Facebook". http://www.inspiredbyiceland.com/inspiration/iceland-airwaves/valdimar/

But this one will http://www.inspiredbyiceland.com/inspiration/iceland-airwaves/snorri-helgason/

But these pages are excls the same, they use the same template so the code should not be any different, and in fact I cant see any differents between these pages that could be causing this kind of problem.

You can view the overview page here http://www.inspiredbyiceland.com/inspiration/iceland-airwaves/ . Most of the single pages work fine and show up on users timeline. Most of the content on the site works fine so far as I know.

There is an Facebook application defined on the page. I'm not sure if that is related to this problem.