Alright, now I have a similar issue, this time with the query filters for products.
It seems when using publication_ids:XXXXX in a product query filter, it only includes published publications. Is there a way to also include the unpublished ones?
Edit: This seems to be a related issue: https://community.shopify.dev/t/filtering-products-by-querying-publication-status-to-a-sales-channel-app-does-not-work