ProductOverviewModel showing zero count for SpecificationAttributeModels

I'm trying to pull a specificationAttribute for products displayed on any category page and tried to reference (in razor):
@Model.SpecificationAttributeModels.Count

in the _ProductBox.cshtml page but the count is always zero (even though all the products have about 8 defined for each). The count should be returning 7 or 8 (depending on the product).

Somehow the specificationAttributes are never set in the ProductOverviewModel (even though it's defined).
Is there something I'm missing?

Thanks

This property is not prepared by default (for performance optimization). Open "Category" method of \Nop.Web\Controllers\CatalogController.cs. Find

model.Products = PrepareProductOverviewModels(products).ToList();

and replace with

model.Products = PrepareProductOverviewModels(products, prepareSpecificationAttributes: true).ToList();

That did the trick! Thank you!

You could also add a code-snippet to the Razor-Template to get a specification attribute(s) and cache it, e.g. in _ProductBox.cshtml:

var mySpec = cacheManager.Get($"Nop.pres.product.specs-{Model.Id}-mySpec", () => specificationAttributeService.GetProductSpecificationAttributes(Model.Id, 1234).FirstOrDefault()?.CustomValue);