I am encountering a strange problem with plugin Flowcharts https://github.com/jakob1111/dokuwiki-plugin-flowcharts/ and Hogfather. Same problem as described here: https://github.com/jakob1111/dokuwiki-plugin-flowcharts/issues/17 seems specific to Hogfather.
After editing a flowchart once, using the <flow>..</flow> tags and the mermaid syntax, the flowchart appears OK. After reloading the page once, it doesnt appear at all anymore.
With a manual upgrade to the latest version of mermaid.js, after reloading the graph still not appears, yet i get a mermaid "syntax error in graph" message. (which is striking as the syntax of the graph didnt change since the first time it was displayed OK!)
It could be just a bug in the plugin, if it wasn't for the following very strange behaviour:
When trying to access former revisions of the same page, the graph ALWAYS appears correctly. So maybe it's not a problem in the plugin after all? I tried to disable the cache, and it changed nothing... How to diagnose something like this?
Has anyone encountered similar behaviour, and hopefully found a remedy?