I want to get text by reading QR Code image. By the way, in iOS15.0.2, CIDetector featuresInImage returns no data. But in iOS 14.6 it returns data. Please answer what the reason is.

Hello. I am an iOS app developer. I want to get the contents of the corresponding QR from the QR code image. As of iOS 15.0.2, iOS API CIDetector featuresInImage returns no data. The same API works normally in iOS 14.6. Please check if there is a bug in CIDetector featuresInImage in iOS 15.0.2. Best regards, Hyoung-jin, Kim