Rclone sync fails when destination doesn't support sparse files

[verize]

What is the problem you are having with rclone?

When running a sync operation rclone just infinitely copies files, constantly overwriting already downloaded ones. Destination file system is exFAT so I have to use --local-no-sparse

Run the command 'rclone version' and share the full output of the command.

PS C:\Users\user> rclone version
rclone v1.57.0
- os/version: Microsoft Windows 10 Enterprise LTSC 2021 2009 (64 bit)
- os/kernel: 10.0.19044.1706 (x86_64)
- os/type: windows
- os/arch: amd64
- go/version: go1.17.2
- go/linking: dynamic
- go/tags: cmount

Which cloud storage system are you using? (eg Google Drive)

Google Drive

The command you were trying to run (eg rclone copy /tmp remote:tmp)

rclone sync --progress --local-no-sparse gcrypt:Music/Library I:/Library

The rclone config contents with secrets removed.

[gdrive]
type = drive
client_id = xxx.apps.googleusercontent.com
client_secret = xxx
scope = drive
token = {"access_token":"xxx","token_type":"Bearer","refresh_token":"xxx","expiry":"2022-06-13T12:34:47.1458457+02:00"}

[gcrypt]
type = crypt
remote = gdrive:/vault
filename_encryption = standard
directory_name_encryption = true
password = xxx

A log from the command with the -vv flag

Sorry no log as I would have to re-download over 368 GB which takes ages on my connection but I have screenshots of the issue.

[ncw (Nick Craig-Wood)]

It would help me track this down if you could tell me what the ERROR message is you get when trying to dowload to extfat.

[verize]

What you see on the screenshot is all there is apart from a couple more dial tcp: lookup www.googleapis.com: no such host messages because my internet drops out for a few seconds sometimes.

[ncw (Nick Craig-Wood)]

I see...

Can you do a test for me?

Copy a smallish file (> 10MB) to your extfat partition

rclone -vv copy gcrypt:Music/Library/path/to/small/file.bin --multi-thread-cutoff 10M I:/Library --retries 1

Then do

rclone lsl gcrypt:Music/Library/path/to/small/file.bin 
rclone lsl I:/Library/file.bin
rclone md5sum --download gcrypt:Music/Library/path/to/small/file.bin 
rclone md5sum I:/Library/file.bin

And post the output of all the rclone commands? You'll need to adjust the paths as appropriate. Don't use the --local-no-sparse flag.

Thank you