(no campaign) in Visit Value report by campaign

When we pull the Visit Value report via API at endpoint '/reports/visit-value/dimensions/by_campaign' we get one row of data with campaign listed as "(no campaign)". Looking in our reporting interface we have campaigns with names listed for the same timeframe. Is there something separate we need to set up to get our campaigns to be listed in this report via API? Or something else we're missing?

Thank you!