Area Health & Fitness → HealthKit → Health Records (FHIR Ingestion)
Summary On devices running iOS 26.2, FHIR Clinical Records successfully connect and validate, but no data (Procedure, DiagnosticReport, Observation, etc.) is ingested into the Health app. The same FHIR server and patient connection works correctly on iOS 18.1, where all data syncs and displays as expected. On iOS 26.2:
FHIR validation passes in Health Records
“Last Download Date” updates
Patient data is visible in connection
No clinical data appears in Health app
No apps are listed under Privacy → Health
Device shows “No Data Found”
Crash logs show healthappd terminating during ingestion
This appears to be a regression in the HealthPlatform / HealthKit ingestion pipeline in iOS 26.
Steps to Reproduce
Use an iPhone running iOS 26.2
Open Health app
Add Health Record from FHIR server
Authenticate successfully
Confirm FHIR validation screen shows all resources as “Passed”
Wait for sync to complete
Expected Result
Procedures, DiagnosticReports, Observations, etc. should appear in Health app
Data should be written to HealthKit
Apps should appear under Settings → Privacy & Security → Health
Actual Result
No data appears in Health app
No Procedures, DiagnosticReports, Observations, etc.
Apps section under Health permissions shows “None”
Device shows “No Data Found”
Last Download Date updates correctly
Validation Results (All Passed) The following FHIR resources show “Passed” in Health validation:
AllergyIntolerance
Condition
DiagnosticReport
DiagnosticReport-ClinicalNotes-Cardiology
DiagnosticReport-ClinicalNotes-Pathology
DiagnosticReport-ClinicalNotes-Radiology
DocumentReference-ClinicalNotes
Immunization
MedicationRequest
Observation-Labs
Observation-VitalSigns
Patient
Procedure
Server responses are correct and return expected data when tested via Postman.
Crash Log Details Crash occurs in process: healthappd Frameworks involved: HealthPlatform.framework HealthKit Combine Exception: EXC_BAD_ACCESS SIGKILL EXC_ARM_PAC_FAIL Thread: com.apple.HealthKit.HKHealthStoreImplementation.client Stack trace includes: objc_msgSend HKSharedSummary DictionaryStorage.deinit swift_release_dealloc objc_destructInstance Publishers.MergeMany Future.init This indicates the ingestion pipeline crashes before data is written to HealthKit.
Comparison Across OS Versions
iOS Version Result iOS 18.1 Data syncs correctly iOS 26.2 No data syncs, healthappd crash Same:
Same FHIR server
Same patient
Same authentication
Same device model
Same iCloud settings
Additional Notes
OAuth flow succeeds
FHIR validation passes
Server responses are correct
Postman returns correct JSON
No TLS errors
No permission errors
Issue only occurs on iOS 26+
This appears to be a regression in the FHIR ingestion engine introduced after iOS 18.1.