The problem is solved. It was the Avada plugin. In the search settings, the default tags under Search Results Content act like a filter so that the Custom Post Types contained in the Relevanssi Index are not taken into account.
The problem is solved. It was the Avada plugin. In the search settings, the default tags under Search Results Content act like a filter so that the Custom Post Types contained in the Relevanssi Index are not taken into account.