Family Controls authorization error

Hi everyone, I'm developing an iOS app that uses Apple's Family Controls / Screen Time APIs. I've encountered a strange issue when testing with multiple devices: The app works normally on the first device. When I install the same TestFlight build on a second device, the user completes the Family Controls authorization successfully. Immediately after authorization, an error appears: "Family Controls is only available for one application." After dismissing the error, the app still works normally. Screen Time / Shield functionality also appears to work as expected. The issue seems to occur specifically when authorizing the app on a second device. Has anyone encountered this error before?

Family Controls authorization error
 
 
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