Emacs d-mode syntax highlighting fails on strings

[Q]

I'm getting basically this:
https://github.com/Emacs-D-Mode-Maintainers/Emacs-D-Mode/issues/112
However the issue is supposed to be fixed and I have an up to 
date version, to no avail. I don't have a Microsoft GitHub 
account so I can't comment there. Does anyone else have or has 
had this issue? Any pointers on how to fix it? I'm trying to 
learn D but that issue is getting extremely annoying. Thanks!