Some types of promotions aren't retrieved in the ProductSummaryProvider context, and therefore its badges aren't rendered by the vtex.product-highlights component.

These are the types of promotion settings that are known to reproduce this problem:

• Regular Promotion with discount type set as Gift;
• Regular promotion that is configured to be applied to specific Brand AND Collection together;

Include the promotional products in a specific collection and set the product-highlights component as "type": "collection", so that it shows the collection badge.