Hi Steve - I am using your latest version of Structured Data downloaded from GitHub recently on a V1.5.7b site and all is good with just this one query - in all cases Google is flagging a 'warning' for products in testing the markup via Google Rich Results ... 'Invalid object type for field "brand" .... this is auto filled correctly and when testing using https://validator.schema.org/ there are no warnings.

So just wondering if there was a fix for this or is it simply Google being google?

cheers, Mike