"Mobile" navigation does not show up in a child theme

[aoloe]

I have extended the bootstrap4 theme.

It does work, but the "Mobile" navigation is not displayed, when the page width is shrinked.

It does show up, when I directly use the bootstrap4 theme.
The "normal" navigation is displayed when the window is wide enough.

I've done a few small changes to the body and navigation partials, so i tried to rename the templates folder to avoid grav from finding the new partials: the navigation does not show up either.

[aoloe]

Ok, nevermind, I've found the culprit: i was missing a use at the top of my child theme .php file...
Sorry for the noise.

[aoloe]

Oops... I picked the wrong sub-theme... I still have the issue with the one which is based on bs4...

[aoloe]

[aoloe]

ok, i could find out how to get it to work.

i had to copy most of the content of the blueprint.yaml and bootstrap4.yaml files into my own file.

the issue seems to be related to a missing value "light" which made a class name invalid and screwed the button detection.

i think you should fix that and do something sane by default, if that value is missing.

ping me if you need more infos.