Categories and other fields missing from some imported woocommerce products

Categories and other fields missing from some imported woocommerce products

I have the woocommerce intergation, and since few days ago when I try to retrieve orders it succeeds, but the orders have many fields missing, despite being filled if I check the details on woocommerce.

Some of these datails are critical, like categories and tags. The weirdness of it is that it was working fine before, only some products are affected, but they don't seem to have any peculiar difference with the ones that work.

Any idea?

Thanks