I have an app with encrypted core ML model. App was working fine and was decrypting model properly. After app update on my device it has started giving following error
[coreml] Could not create persistent key blob for EFD428E8-CDE7-4E0A-B379-FC169E50DE4D : error=Error Domain=com.apple.CoreML Code=8 "Fetching decryption key from server failed." UserInfo={NSLocalizedDescription=Fetching decryption key from server failed., NSUnderlyingError=0x281d80ab0 {Error Domain=CKErrorDomain Code=6 "CKInternalErrorDomain: 2022" UserInfo={NSDebugDescription=CKInternalErrorDomain: 2022, RequestUUID=D5CF13CF-6A10-436B-AB93-4C5C04859FFE, NSLocalizedDescription=Request failed with http status code 503, CKErrorDescription=Request failed with http status code 503, CKRetryAfter=35, NSUnderlyingError=0x281d80000 {Error Domain=CKInternalErrorDomain Code=2022 "Request failed with http status code 503" UserInfo={CKRetryAfter=35, CKHTTPStatus=503, CKErrorDescription=Request failed with http status code 503, RequestUUID=D5CF13CF-6A10-436B-AB93-4C5C04859FFE, NSLocalizedDescription=Request failed with http status code 503}}, CKHTTPStatus=503}}}
[coreml] MLModelAsset: load failed with error Error Domain=com.apple.CoreML Code=8 "Fetching decryption key from server failed." UserInfo={NSLocalizedDescription=Fetching decryption key from server failed., NSUnderlyingError=0x281d80ab0 {Error Domain=CKErrorDomain Code=6 "CKInternalErrorDomain: 2022" UserInfo={NSDebugDescription=CKInternalErrorDomain: 2022, RequestUUID=D5CF13CF-6A10-436B-AB93-4C5C04859FFE, NSLocalizedDescription=Request failed with http status code 503, CKErrorDescription=Request failed with http status code 503, CKRetryAfter=35, NSUnderlyingError=0x281d80000 {Error Domain=CKInternalErrorDomain Code=2022 "Request failed with http status code 503" UserInfo={CKRetryAfter=35, CKHTTPStatus=503, CKErrorDescription=Request failed with http status code 503, RequestUUID=D5CF13CF-6A10-436B-AB93-4C5C04859FFE, NSLocalizedDescription=Request failed with http status code 503}}, CKHTTPStatus=503}}}
[coreml] MLModelAsset: modelWithError: load failed with error Error Domain=com.apple.CoreML Code=8 "Fetching decryption key from server failed." UserInfo={NSLocalizedDescription=Fetching decryption key from server failed., NSUnderlyingError=0x281d80ab0 {Error Domain=CKErrorDomain Code=6 "CKInternalErrorDomain: 2022" UserInfo={NSDebugDescription=CKInternalErrorDomain: 2022, RequestUUID=D5CF13CF-6A10-436B-AB93-4C5C04859FFE, NSLocalizedDescription=Request failed with http status code 503, CKErrorDescription=Request failed with http status code 503, CKRetryAfter=35, NSUnderlyingError=0x281d80000 {Error Domain=CKInternalErrorDomain Code=2022 "Request failed with http status code 503" UserInfo={CKRetryAfter=35, CKHTTPStatus=503, CKErrorDescription=Request failed with http status code 503, RequestUUID=D5CF13CF-6A10-436B-AB93-4C5C04859FFE, NSLocalizedDescription=Request failed with http status code 503}}, CKHTTPStatus=503}}}
Somehow fetching decryption key from server is failing. I have tried deleting app, restarting device but it doesn't seem to work.
Has anyone faced this issue? Any help is appreciated.