Problem with iCloud sync

[Kuba]

Hi.

I have just installed V12 and I am trying to connect to my iCloud Data (Documents and Photos). Unfortunately I am receiving the following error messages. I have already waited a couple hours and retried. While I am able to connect to my account, there is no directory listing of files or photos.
Advanced Data Protection in my iCloud-Account is activated.

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Scanning Folders Started At 22.06.2026 09:44:43
22.06.2026 09:44:43 iCloud Drive: iCloud Drive Connect Successful
FTPList Exception ETGFTPErrorDoNotRetry: iCloud Photos library is not ready (state: QUERY_FAILED). Apple is still building the cloud index — try again in a few minutes. This is normal right after enabling iCloud Photos or uploading a large batch. CP: FTPList6,CloudListDir12,HMX,HM1000,HM900,HM700

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Fehler bei Zugriff auf ext://iCloud Photos: iCloud Photos library is not ready (state: QUERY_FAILED). Apple is still building the cloud index — try again in a few minutes. This is normal right after enabling iCloud Photos or uploading a large batch.
iCloud Photos library is not ready (state: QUERY_FAILED). Apple is still building the cloud index — try again in a few minutes. This is normal right after enabling iCloud Photos or uploading a large batch.

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Apple ID         : xxxxx
DSID             : xxxxx
HSA version      : 2
Drive WS URL     : https://p179-drivews.icloud.com:443
Doc WS URL       : https://p179-docws.icloud.com:443
Internal Cloud ID : iCloudDrive_xxxxx
Last Token Refresh: 22.06.2026 09:37:28

[tobias]

Hello,
I think it does not work with Advanced Data protection, because that effectively disables the API.

But I will double-check.

[tobias]

Hello,
what you can do is choose Rclone as a protocol and sync with iCloud drive via Rclone.

[Kuba]

Hi.

Thank you. Yes, that worked, but there some details that were tricky to get everything running:
- You need to enable Web-Access in your iCloud settings on your Apple device.
- I could not configure the token through the rclone web GUI. I had to edit the config via terminal with rclone config to enter the 2FA code. The GUI always prompted a 500 server error and never saved the config properly.

[tobias]

Hello,
yes, both Syncovery and rclone act like a browser connection.

Now that you have enabled web access, maybe Syncovery's native iCloud Drive works too?

[Kuba]

Unfortunately no... The native iCloud Drive does not work. Exits with the same error message.

But rclone works good so far. So thanks for helping me out here.

[tobias]

The new Syncovery version 12.3.2 can now connect with iCloud and Advanced Data Protection. There might still be some glitches though, so if it works find for you via Rclone in Syncovery, you can stick with that.

[Kuba]

Great, thanks. I will try it and see if the special character naming is also problematic.

[Kuba]

Hi Tobias.

I tried to use your implemenation, but I get a Stream difference Error on about 30% of all files, while the Rclone approach only leads to 2% error due to the naming error. Here's an example from the log. I duplicated the profile settings so only source and target folder are changed.

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17.07.2026 20:26:20 iCloud Drive: Error downloading: Stream difference detected (EStreamVerifyError)
Stream difference detected
20:26:20.235 IP Exception (5): EStreamVerifyError Stream difference detected @ 00007FF614C14AE2, CP:CorEX5:Stream difference detected,CbEnqAbX,CbEnqAb,EStreamVerifyError@00007FF614C14AE2,Stream difference detected,CloudGetEX
isNoSuchFileError: FALSE
Exception Stream difference detected at 00007FF614C14AE2.
Dateiname: ext://iCloud Photos/All Photos/IMG_2421.HEIC
Checkpoints: TGGetOrPutEX:Stream difference detected,ChkConnR2,ChkConnR1,CorEX5:Stream difference detected,CbEnqAbX,CbEnqAb
Unvollständige Datei vom Ziellaufwerk gelöscht: D:\test\IMG_2421.HEIC

Edit: I used version 12.3.4

[tobias]

Hello,
many thanks, I am looking into it!

One potential cause has been found already.