Brand to Primary Category map not working

I have created a custom feed for Facebook Merchant use.

In the field mapping I have set brand to woocommerce primary product category. See snipboard image.

But the brand and primary category doesn’t show in the XML feed.

I have two filters set up. One excluding entries where stock = 0 and the other excluding entries with SKU containing Tilbud.

Debug file can be downloadet here: https://tinyurl.com/y2v73h8c

Thanks in advance!