doesn't build menu on windows nightly 0.9.

Expected Behaviour

• there is a menu button in the bottom left corner of the presentation
• \rightarrow is shown as a arrow to the right

Observed Behaviour

• decker doesn't build this menu, the button is not there
• \rightarrow produces (\rightarrow) in the presentation

Tested Already

• decker.yaml does contain menu: true

• the *deck.md header doesn't override it, it is almost empty

• decker clean and deleting the public folder doesn't help

• public\support\vendoor contains reveal.js-menu and mathjax folder

• problem exists in Chrome and Firefox

• works correctly with decker example, decker.yaml and public\vendoor folders look identical

• copied the whole project to a mac (with decker 0.9) excecuted decker server there and copied the public folder back to my machine did build the menu and the presentation looked as expected

Environment

Windows 10 Home 1903 64bit Decker 0.9 (previous version 0.8.2 was uninstalled before installation)

source files

decker.yaml

#Sane defaults for reveal.js
provisioning: Copy
menu: true
controls: true
keyboard: true
progress: true
history: true
center: true
slideNumber: true
hash: true
overview: true
touch: true
fragments: true
fragmentInURL: true
help: true
hideInactiveCursor: true
hideCursorTime: 2000
transition: "none"
backgroundTransition: "none"
width: 		1280
height:  	720
css:		styles.css
#publishing to a remote location (example)
rsync-destination:
    host: git@gitlab2.informatik.uni-wuerzburg.de
    path: /some/path

begining of *-deck.md:

---
bibliography: 	bibliography.bib
csl: 		chicago-author-date.csl
---

# {.title}

##