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Hello ,We are facing issues with app linking where it works on some devices and does not on the others. Our app version is in Testflight .When we check the console of the device where it does not work we see following error.default 13:54:36.992693 +0200 swcd Started request for domain , URL 'https://www.***.be/.well-known/apple-app-site-association'default 13:54:37.016006 +0200 dasd Submitted Activity: com.apple.CFNetwork-cc-98-54-Task <73F68C34-7F2A-4E19-85B0-5C2526FE11BB>.<com.apple.swcd>.<com.apple.SharedWebCredentials-55DDB6A7-DB8D-47A9-BECC-AE2B110595A1>.<1>:62BB26 at priority 90 <private>default 13:54:37.020478 +0200 dasd com.apple.CFNetwork-cc-98-54-Task <73F68C34-7F2A-4E19-85B0-5C2526FE11BB>.<com.apple.swcd>.<com.apple.SharedWebCredentials-55DDB6A7-DB8D-47A9-BECC-AE2B110595A1>.<1>:62BB26:[{name: ApplicationPolicy, policyWeight: 5.000, response: {Decision: Can Proceed, Score: 0.10}}{name: DeviceActivityPolicy, policyWeight: 10.000, response: {Decision: Can Proceed, Score: 0.60}}] sumScores:27.200000, denominator:35.700000, FinalDecision: Can Proceed FinalScore: 0.761905}default 13:54:37.020575 +0200 dasd 'com.apple.CFNetwork-cc-98-54-Task <73F68C34-7F2A-4E19-85B0-5C2526FE11BB>.<com.apple.swcd>.<com.apple.SharedWebCredentials-55DDB6A7-DB8D-47A9-BECC-AE2B110595A1>.<1>:62BB26' DecisionToRun:1 (Bypasses Predictions)default 13:54:37.059375 +0200 nsurlsessiond [C58 Hostname#ec124cd0:443 tcp, bundle id: com.apple.swcd, url hash: d0fc027c, tls, indefinite] startdefault 13:54:37.266159 +0200 swcd ### Bad apple-app-site-association server trust: -6754/0xFFFFE59E kAuthenticationErr, 1 (kSecTrustResultProceed), { "TrustExpirationDate" : 2019-07-25 06:35:42.000, "TrustRevocationChecked" : true, "TrustExtendedValidation" : true, "Organization" : "*** ", "TrustResultValue" : 1, "TrustCertificateTransparency" : true, "TrustEvaluationDate" : 2019-07-18 11:54:37.252, "TrustResultDetails" : [ {}, {}, {} ],}default 13:54:37.266216 +0200 swcd ### Rejecting URL 'https://www.***.be/.well-known/apple-app-site-association' for auth method 'NSURLAuthenticationMethodServerTrust': -6754/0xFFFFE59E kAuthenticationErrdefault 13:54:37.267680 +0200 swcd Task <1674E61D-77F1-4D10-9820-CFF592216A27>.<2> resuming, QOS(0x15)default 13:54:37.267737 +0200 swcd Create activity <nw_activity 12:3>default 13:54:37.267901 +0200 swcd Activated <nw_activity 12:3 [33900FB4-9DBD-4648-966C-A6EEC044C195] (reporting strategy default)>default 13:54:37.268273 +0200 swcd [Telemetry]: Activity <nw_activity 12:3 [33900FB4-9DBD-4648-966C-A6EEC044C195] (reporting strategy default)> on Task <1674E61D-77F1-4D10-9820-CFF592216A27>.<2> was not selected for reportingdefault 13:54:37.270222 +0200 swcd Started request for domain 'www.***.be', URL 'https://www.***.be/apple-app-site-association'default 13:54:37.273741 +0200 dasd Submitted Activity: com.apple.CFNetwork-cc-98-55-Task <1674E61D-77F1-4D10-9820-CFF592216A27>.<com.apple.swcd>.<com.apple.SharedWebCredentials-55DDB6A7-DB8D-47A9-BECC-AE2B110595A1>.<2>:3F4E84 at priority 90 <private>default 13:54:37.275261 +0200 dasd com.apple.CFNetwork-cc-98-55-Task <1674E61D-77F1-4D10-9820-CFF592216A27>.<com.apple.swcd>.<com.apple.SharedWebCredentials-55DDB6A7-DB8D-47A9-BECC-AE2B110595A1>.<2>:3F4E84:[{name: ApplicationPolicy, policyWeight: 5.000, response: {Decision: Can Proceed, Score: 0.10}}{name: DeviceActivityPolicy, policyWeight: 10.000, response: {Decision: Can Proceed, Score: 0.60}}] sumScores:27.200000, denominator:35.700000, FinalDecision: Can Proceed FinalScore: 0.761905}default 13:54:37.275403 +0200 dasd 'com.apple.CFNetwork-cc-98-55-Task <1674E61D-77F1-4D10-9820-CFF592216A27>.<com.apple.swcd>.<com.apple.SharedWebCredentials-55DDB6A7-DB8D-47A9-BECC-AE2B110595A1>.<2>:3F4E84' DecisionToRun:1 (Bypasses Predictions)default 13:54:37.278397 +0200 nsurlsessiond [C59 Hostname#ec124cd0:443 tcp, bundle id: com.apple.swcd, url hash: c76faa2c, tls, indefinite] startdefault 13:54:37.444839 +0200 swcd <nw_activity 12:3 [81BB1A2C-179B-49E7-96F0-7360EB6EF4E1] (reporting strategy default) complete (reason failure)> complete with reason 3 (failure), duration 480mserror 13:54:37.444895 +0200 swcd Task <73F68C34-7F2A-4E19-85B0-5C2526FE11BB>.<1> load failed with error Error Domain=NSURLErrorDomain Code=-999 UserInfo={NSErrorFailingURLStringKey=<private>, NSErrorFailingURLKey=<private>, _NSURLErrorRelatedURLSessionTaskErrorKey=<private>, _NSURLErrorFailingURLSessionTaskErrorKey=<private>, NSLocalizedDescription=<private>} [-999]default 13:54:37.635952 +0200 swcd ### Request for 'https://www.***.be/apple-app-site-association' denied: 404/0x194 Not Founddefault 13:54:37.636026 +0200 swcd Completing request for 'https://www.***.be/apple-app-site-association', status 0/0x0 noErrdefault 13:54:37.637070 +0200 swcd Updated app ID '8C3949R27A.be.***.MyXXX2', domain 'www.***.be', flags 0x0 < > -> 0x4 < SiteDenied > on checkdefault 13:54:37.641292 +0200 swcd <nw_activity 12:3 [33900FB4-9DBD-4648-966C-A6EEC044C195] (reporting strategy default) complete (reason failure)> complete with reason 3 (failure), duration 274mserror 13:54:37.642884 +0200 swcd Task <1674E61D-77F1-4D10-9820-CFF592216A27>.<2> load failed with error Error Domain=NSURLErrorDomain Code=-999 UserInfo={NSErrorFailingURLStringKey=<private>, NSErrorFailingURLKey=<private>, _NSURLErrorRelatedURLSessionTaskErrorKey=<private>, _NSURLErrorFailingURLSessionTaskErrorKey=<private>, NSLocalizedDescription=<private>} [-999]default 13:54:37.645895 +0200 swcd Closing NSURLSession com.apple.SharedWebCredentials-55DDB6A7-DB8D-47A9-BECC-AE2B110595A1default 13:54:37.645949 +0200 swcd Save databaseIf someone has faced simlilar issue or provide any help it will be appreciated.Regards,Aniket