watchOS 4b3 (15R5321h) stopped automatically saving HK data points for heart rate (Series 0)

Originator:felipekellermann
Number:rdar://33342128 Date Originated:July 16
Status:Open Resolved:
Product:watchOS + SDK Product Version:watchOS 4.0b3 (15R5321h)
Classification:Critical Bug Reproducible:Always
 
Area:
HealthKit

Summary:
After updating watchOS 4.0 beta 3 the vitals data points (heart rate) stopped being automatically saved to Health (HK). Two devices (Series 0) reproduced the issue, one device (Series 2) didn't reproduce the issue. When the Heart app (Watch) is used explicitly, it saves the data points correctly. The constant (10 min) background save doesn't work.

Steps to Reproduce:
1 - Update a Series 0 device (MJ3N2FD/A, MJ3T2VC/A) to watchOS 4.0 beta 3.
2 - Check HK data points: Health app, Source, Devices, Watch, Vitals.
3 - Notice that explicit measures work fine: use Heart app (Watch) and it immediately writes the data points.

See the attached screenshots: Jul 16, 9:43 AM and 4:42 PM was explicit measurements. Background (10 mins) measures is missing. Also, when a Workout is started/finished using the native Watch app, it doesn't save the heart rate data points associated to the Workout session.

Expected Results:
Both background/automatic (10 min) heart rate is required for many activities (like sleep tracking using AutoSleep and other apps). Also, Workout sessions should associate heart rate data. Observed using Series 0 devices.

Observed Results:
Background/Automatic (10 min) heart rate is missing, breaking many apps. Also, Workouts are not associating heart rate. Observed using Series 0 devices.

Version:
watchOS 4b3 (15R5321h)

Notes:
No HK diagnostics (HealthKit_Logging_Instructions__Watch.pdf) was found. Still waiting for some sync.

Configuration:

Comments

watchOS 4b3 (15R5321h)

Background/Automatic (10 min) heart rate is missing, breaking many apps. Also, Workouts are not associating heart rate.


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