gitlab pages builds of the website mess up the most recent post

The most recent blog/news post gets messed up on the GitLab Pages builds, but seem to work fine on f-droid.org. First, the entry in the news overview is missing except for the date, which is the date the build ran (2020-01-16), not the date of the blog post (2020-01-16):

For example, this post in this merge request:

Should up here (also attached 2020-01-16-tracking-the-trackers.html.zip ): https://eighthave.gitlab.io/fdroid-website/en/2020/01/17/2020-01-16-tracking-the-trackers.html

The HTML is also wrong, it is missing the headers and footers.