In my website all pages generating headers using "#" in markdown, instead have the # rendered. See this example. Every other markdown element is being correctly rendered such as the bold or links. Only these are being incorrectly rendered.
Locally this is being rendered correctly, but when pushing to github pages this is happening. I've attached images as well:
This is being rendered locally

and this is rendered on github-pages

Ok I figured this out - its because there has to now be a space between # and the first letter, which was not required before the recent update.
In the future https://talk.jekyllrb.com is the place to ask questions that are not confirmed bugs. Thanks!
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Ok I figured this out - its because there has to now be a space between # and the first letter, which was not required before the recent update.