SecItemAdd success, but app startup SecItemCopyMatching return NotFound
chensw@dev
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suddenly
iOS app release
sandbox file
fail to open [/var/mobile/Containers/Data/Application/52B6A7C2-2F2C-400F-8D6B-4B500434F918/Library/com.zhibo8.client81136870/UserDefault/mmkv/cache], 1(Operation not permitted)
some device restart recover
ios app from app store
some day，unable to read, write any file, included SecItemAdd
What is the possible cause?
thank you