Amazon-Printify Integration

Are there any Amazon professional sellers out there that have successfully published branded clothing products from Printify?

I have an approved Amazon brand and GTIN exemption under that brand. When I publish clothing items from Printify however, it comes across as a generic product, and says it has a publishing error. I think this is because my GTIN exemption is under the brand and not generic. Yet, I don’t know if Printify can create branded listings.

Listing says Active in Amazon, but shows a publishing error in Printify.

Has anyone solved this: how to publish branded Amazon listings from Printify?

What am I doing wrong?

Here is my listing, but it comes across as unavailable with a GTIN publishing error on Amazon:

https://www.amazon.com/gp/product/B0DRJDXTQQ/ref=cx_skuctr_share?smid=A2LWAL7X1LX49K