I am having the same problem. We are creating an app in Japan that reads QR codes for electronic medication registers. The standard for medical information is exported in multi-byte format, so we need a compatible QR code scanner to read them. The QR code scanner library (react-native-vision-camera) we are using now probably uses Apple's camera library by default and cannot encode Shift_JIS since 17.1. The only result is a "null" return. It is readable with 17.0.3, but not with 17.1. I would really appreciate it if Apple could improve this problem of not being able to read.