Our application has initiated an NSURLSession data task, and we have received an initiation ID. However, Application not received callback on the subsequent activity: the task has not been requested, has not timed out, and no error callback has been received.
[06/17 09:29:40:559][ 0x282a7d8c0]<NSURLSession> Requested TaskIdentifier 120
2025-06-17 09:29:40.623337 +0530 nsurlsessiond SUBMITTING: com.apple.CFNetwork-cc-166-373-Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120>:A71666 default 2025-06-17 09:29:40.631280 +0530 dasd Submitted Activity: com.apple.CFNetwork-cc-166-373-Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120>:A71666 at priority 10 <private> default
Seen couple of rejection with <Must Not Proceed> for CPUUsagePolicy and MemoryPressurePolicy
2025-06-17 09:29:40.989360 +0530 dasd com.apple.CFNetwork-cc-166-373-Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120>:A71666:[ {name: CPUUsagePolicy, policyWeight: 5.000, response: {Decision: Must Not Proceed, Score: 0.00, Rationale: [{[Max allowed CPU Usage level]: Required:90.00, Observed:95.00},]}} {name: MemoryPressurePolicy, policyWeight: 5.000, response: {Decision: Must Not Proceed, Score: 0.00, Rationale: [{[memoryPressure]: Required:1.00, Observed:2.00},]}} ], FinalDecision: Must Not Proceed} default 2025-06-17 10:55:22.500277 +0530 dasd com.apple.CFNetwork-cc-166-373-Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120>:A71666:[ {name: MemoryPressurePolicy, policyWeight: 5.000, response: {Decision: Must Not Proceed, Score: 0.00, Rationale: [{[memoryPressure]: Required:1.00, Observed:2.00},]}} ], FinalDecision: Must Not Proceed} default
And more an hour later then it throws with an error BUT NEVER indicated the same to client
2025-06-17 10:55:27.426549 +0530 WAVE PTX Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120> is for <<private>>.<<private>>.<120> default
2025-06-17 10:55:27.776951 +0530 nsurlsessiond Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120> summary for task failure {transaction_duration_ms=5147145, response_status=-1, connection=0, reused=1, request_start_ms=0, request_duration_ms=0, response_start_ms=0, response_duration_ms=0, request_bytes=0, response_bytes=0, cache_hit=false} default
2025-06-17 10:55:27.777096 +0530 nsurlsessiond NDSession <714296D7-20F9-4A0A-8C31-71FB67F39A56> Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120> for client <private> will be retried after error Error Domain=_nsurlsessiondErrorDomain Code=6 UserInfo={NSErrorFailingURLStringKey=<private>, NSErrorFailingURLKey=<private>, _NSURLErrorRelatedURLSessionTaskErrorKey=<private>, _NSURLErrorFailingURLSessionTaskErrorKey=<private>} - code: 6 default
Then It got resumed and says successful but never got any callback on the same to client
2025-06-17 10:55:28.877245 +0530 nsurlsessiond NDSession <714296D7-20F9-4A0A-8C31-71FB67F39A56> Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120> resuming default 2025-06-17 10:55:55.225456 +0530 nsurlsessiond Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120> received response, status 401 content K default 2025-06-17 10:55:55.250371 +0530 nsurlsessiond Task <D6B7595C-D94E-47F4-AE4F-A07DC1020929>.<120> finished successfully default
Please refer feedback for diagnose logs: https://feedbackassistant.apple.com/feedback/18173303