Jekyll/Liquid highlight tag bug
I took a break from writing for a while. And look what I found when I got back - my page stopped building :/
Jekyll will build locally. But once I push to github, it fails. At first I thought it was a Github ish as I saw similar complaints around the web. It later occured to me it could be the difference in jekyll version, so I updated the gem this morning.
Building locally now generates an error: Liquid Exception: highlight tag was never closed in.... Apparenty it is an issue with the new Jekyll. You can read more about it and the fix here: Jekyll bug: Tag was never closed.
tl;dr: Add the line excerpt_separator: "" to your config file (_config.yml)