MRT Layout Custom - how to become crazy 😭

Hi community,

I'm currently trying to customize the search result layout in SharePoint.

The JSON layout I created works correctly for SharePoint pages, but I would like to use the exact same layout for files, especially for:

• all files tagged as “procédures”, or
• files coming from a specific document library.

Here are my current settings:

The issue is not related to mapped properties. The refinable properties are working, and my verticals return the correct results when using this query.

The problem is only with the layout, which does not apply to file results.

Has anyone already faced this limitation or knows what might block the layout from rendering on file results?

Thanks for your help!