[Theme: Customizr] Menu sidebar not collapsing

Using Customizr version 3.2.15

The menu in the header works as I want it to; sub-pages collapsed and uncollapse with mouse hover.

However when I add the menu as a widget, the menu is not collapsed. The content of the menu is pages only.
How do I change that?

Thank you.
Here’s a demo of what I want to do and the working menu in the header and the now-working menu left sidebar: https://susanne.ws/test/

Susanne