iCloud Photo Library Stops Syncing

Number:rdar://22002905 Date Originated:2015-07-26
Status:Open Resolved:
Product:iOS Product Version:iOS 8.4 (12H143)
Classification: Reproducible:Rarely
Twice I've seen iCloud Photo Library get stuck with the status message 'X photos to upload'. In both cases the phone failed to sync for days on end (the second time I contacted support after 5 days).

This seems to be related to the connection to the server - in one case, a software update resolved the issue; in the second, disabling and renabling iCloud Photo Library resolved it.

Steps to Reproduce:
Unsure. The second time the process was:

1. Take photos and sync library.
2. Put phone in Airplane Mode.
3. Edit photos.
4. Take phone out of Airplane Mode.

And it wouldn't sync again after this.

Expected Results:
Edits and new photos should sync with iCloud Photo Library.

Actual Results:
Status stayed stuck in 'uploading' for days, and the edits and new photos never propagated to additional devices.

iOS 8.4 (12H143)


iPhone 6



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