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docs: added troubleshooting tips for Live Photos in OneDrive

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Ole Frost 2023-02-03 15:21:08 +01:00 committed by Nick Craig-Wood
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@ -725,3 +725,38 @@ Shared with me files is not supported by rclone [currently](https://github.com/r
3. The shortcut will appear in `My files`, you can access it with rclone, it behaves like a normal folder/file.
![in_my_files](https://i.imgur.com/0S8H3li.png "Screenshot (My Files)")
![rclone_mount](https://i.imgur.com/2Iq66sW.png "Screenshot (rclone mount)")
### Live Photos uploaded from iOS (small video clips in .heic files)
The iOS OneDrive app introduced [upload and storage](https://techcommunity.microsoft.com/t5/microsoft-onedrive-blog/live-photos-come-to-onedrive/ba-p/1953452)
of [Live Photos](https://support.apple.com/en-gb/HT207310) in 2020.
The usage and download of these uploaded Live Photos is unfortunately still work-in-progress
and this introduces several issues when copying, synchronising and mounting – both in rclone and in the native OneDrive client on Windows.
The root cause can easily be seen if you locate one of your Live Photos in the OneDrive web interface.
Then download the photo from the web interface. You will then see that the size of downloaded .heic file is smaller than the size displayed in the web interface.
The downloaded file is smaller because it only contains a single frame (still photo) extracted from the Live Photo (movie) stored in OneDrive.
The different sizes will cause `rclone copy/sync` to repeatedly recopy unmodified photos something like this:
DEBUG : 20230203_123826234_iOS.heic: Sizes differ (src 4470314 vs dst 1298667)
DEBUG : 20230203_123826234_iOS.heic: sha1 = fc2edde7863b7a7c93ca6771498ac797f8460750 OK
INFO : 20230203_123826234_iOS.heic: Copied (replaced existing)
These recopies can be worked around by adding `--ignore-size`. Please note that this workaround only syncs the still-picture not the movie clip,
and relies on modification dates being correctly updated on all files in all situations.
The different sizes will also cause `rclone check` to report size errors something like this:
ERROR : 20230203_123826234_iOS.heic: sizes differ
These check errors can be suppressed by adding `--ignore-size`.
The different sizes will also cause `rclone mount` to fail downloading with an error something like this:
ERROR : 20230203_123826234_iOS.heic: ReadFileHandle.Read error: low level retry 1/10: unexpected EOF
or like this when using `--cache-mode=full`:
INFO : 20230203_123826234_iOS.heic: vfs cache: downloader: error count now 1: vfs reader: failed to write to cache file: 416 Requested Range Not Satisfiable:
ERROR : 20230203_123826234_iOS.heic: vfs cache: failed to download: vfs reader: failed to write to cache file: 416 Requested Range Not Satisfiable: