[iMore Question]

I have done the normal icloud backup and PC backup, the camera roll copies fine but the photo library doesn't appear on the backup.

[David M Johnson]

Make sure the iCloud account is the same on PC and both iOS devices. This is usually, but not always the solution. Write back with more detail if that doesn't do it.

[Tartarus]

Also, open on both devices Settings > Photos and make sure everything is exactly the same on both of them.
That way you'd be sure of seeing all photos exactly the same in both devices.
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