[Plugin: WP Facebook Timeline (MF Timeline)] Pages aren't shown

While all articles are shown, pages aren’t shown in total. Some are, some not.
* I tried to figure out any differences between articles in the database itself. Nothing.
* I deleted trash, revisions etc.
* Deactivated ALL plugins except this one.
* Varied the templates used for the article
* Changed its relation to parent article
No change in behaviour, nu success

NB: Media is not shown either, only articles work fine.

https://www.ads-software.com/extend/plugins/wp-facebook-timeline-mf-timeline/