Fixing Inconsistent UTM Data in MixPanel for Facebook Ads Tracking

UTM data is inconsistent. Hi everyone 👋 We're using MixPanel to track user acquisition->activation conversion and our marketing team is using facebook ads. While some of the traffic is tracked, most is showing as 'not set' for campaign, source, and medium. Sample data in the image for the last 30 days. Is there anything else we need to do to map these 'not set' data? I appreciate any assistance on this matter. Thank you!