GraphQL Get Fulfilled Orders

Hello all,

I am using GraphQL with the Admin API to query for products.

When I do something like this:

orders(first: 50, query: “fulfillment_status:unfulfilled”)

I correctly get all unfulfilled orders.
But when I do this:

orders(first: 50, query: “fulfillment_status:fulfilled”)

I get nothing. I have fulfilled orders. the displayFulfilledStatus property is FULFILLED.
There is no error about fulfilled not being valid. The API documentation states fulfilled is valid. In fact, it is even the example query the documentation shares.
But it just isn’t working.

Has anyone experienced this, hopefully with a resolution?

Thank you.