Hi all. If I search my collection: { q: "arke", query_by: 'title,authors', prefix: false, infix: 'fallback', per_page: 3 } I get results like this: { facet_counts: [], found: 48, hits: [ { document: { authors: [ 'Lynsay Sands' ], average_rating: 4.25, id: '9817', publication_year: 2008, ratings_count: 15403, title: 'Vampires are Forever' }, highlight: {}, highlights: [], text_match: 578730054645711000, text_match_info: { best_field_score: '1108057784320', best_field_weight: 15, fields_matched: 1, num_tokens_dropped: 0, score: '578730054645710969', tokens_matched: 1, typo_prefix_score: 2 } }, { document: { authors: [ 'Laura McBride' ], average_rating: 3.94, id: '9787', publication_year: 2014, ratings_count: 5687, title: 'We Are Called to Rise' }, highlight: {}, highlights: [], text_match: 578730054645711000, text_match_info: { best_field_score: '1108057784320', best_field_weight: 15, fields_matched: 1, num_tokens_dropped: 0, score: '578730054645710969', tokens_matched: 1, typo_prefix_score: 2 } }, { document: { authors: [ 'Christian Rudder' ], average_rating: 3.72, id: '9666', publication_year: 2014, ratings_count: 7204, title: "Dataclysm: Who We Are (When We Think No One's Looking)" }, highlight: {}, highlights: [], text_match: 578730054645711000, text_match_info: { best_field_score: '1108057784320', best_field_weight: 15, fields_matched: 1, num_tokens_dropped: 0, score: '578730054645710969', tokens_matched: 1, typo_prefix_score: 2 } } ], out_of: 9981, page: 1, request_params: { collection_name: 'books', first_q: 'arke', per_page: 3, q: 'arke' }, search_cutoff: false, search_time_ms: 0 } Why highlight & highlights fields are empty?