Markdown list is not converted to HTML list

[UnlimitedCookies]

A list with dashes - is just plainly being inserted into the final HTML document without first being to a HTML list converted; resulting in a mingled document.

Something like

- Firstly
- Secondly
- Thirdly

is displayed as

- Firstly - Secondly - Thirdly

while e. g. markdown links are converted totally fine.

I'm on version 4.16.1.0.
The corresponding route is

    match "posts/*" $ do
        route $ setExtension "html"
        compile $ pandocCompiler
            >>= saveSnapshot "content"
            >>= loadAndApplyTemplate "templates/post.html"    postCtx
            >>= saveSnapshot "feed"
            >>= loadAndApplyTemplate "templates/default.html" postCtx
            >>= relativizeUrls

[LaurentRDC]

Hmm that is curious. In the Markdown spec, lists items can start with -.
Can you provide a Markdown file example so I can try it locally?