Google is addressing a bug that prevents product variant structured data from displaying rating stars in search results. This issue was identified by Jarno van Driel and confirmed by Ryan Levering from Google, who assured that a fix is forthcoming.
Jarno highlighted on LinkedIn that the new schemaorg ProductGroup triggers a price-range Rich Result but fails to show rating stars, despite aggregateRating being a recommended property. Ryan Levering acknowledged the bug, noting that it affects eligibility for product carousel markup and rich snippets, which target single product/group pages. He confirmed the importance of fixing this issue promptly.
