# Fixes reference-based preview fields causing groq2024 search failures

**Version:** v5.31.1

**Published:** June 10, 2026

Fixes "Reference search failed: score() function received unexpected expression" when searching with the `groq2024` search strategy. Searches involving document types whose preview `select` traverses a reference (e.g., `subtitle: 'author.name'`) no longer fail. 

Note that these reference-traversed preview fields do not contribute to search matching or ranking under `groq2024` (matching pre-5.31.0 behavior); they remain searchable under the default `groqLegacy` strategy.