Yigit, as requested…
If you set the navigation to use the burger icon with slide in panel then any custom menus used in widgets don’t appear to work.
Steps:
1. Create a menu.
2. In Widgets add a “custom menu” containing the above menu.
3a. If the custom menu widget above was added to a footer then it won’t show the menu on front end.
3b. If the custom menu widget above was added into a block using avia framework (Widget Area, from Content Elements) for use as a sidebar menu or something it also won’t show on the front end.