Hi, I've been using Zen Cart 1.5 since July of 2012 and Google Merchant Center Feeder.

I have not had any issues with the Google Merchant Center Feeder until today. I put a few items back in-stock that have not been active for the last 3 years. Now I'm getting an error in the XML feed from google. It is giving me an error on "Product_Type" for the product that was put back in-stock only. When I look at the XML file the "Product_Type" is missing. The Google Merchant Center Feeder created the "Product Type" on the newly added items in the same category. Why would the Google Merchant Center Feeder not create a "Product_type"?