Why in twig js 2nd level file doesn't accept data from JSON?

Question

JSON

For example: I have a data.json file with navigation data (href, title , icon) and so on.
there is a structure:

views
└─── partials
|   └─── _header.twig
|   └─── components
|       └─── navigation
|           └─── _layout.twig
└─── tmp
|   └─── data.json
└─── index.twig

_header.twig is included in the index.twig itself and navigation layout is included in the header itself .... so when I do {% for item in menu %} in the navigation layout file it returns nothing, even no errors
UPDATE:
it's strange that the same the code that is in the navigation layout if inserted into the header will work fine