Layout Builder: Nav Menu in widgets not working

Since it looks like this theme is no longer supported, this is just an FYI to others who use the Layout Builder child theme.

Add a Navigation Menu to a widget. Set it to a non-primary menu.
In SG Window the correct menu displays. In Laybout Builder the primary/top menu always displays, regardless of the menu chosen in the widget.

This is verified by deactivating all plugins and then just switching between themes in the customizer – no outside influences.

SG Window correctly shows the chosen menu. The issue is in Layout Builder.

I haven’t looked into the code yet to figure this out (probably functions.php). For my current purposes I don’t really need this functionality, I can use a Custom HTML widget with hardcoded HTML links to get around the problem.

If I or someone else finds the solution, let’s post it here.