[Cyberduck-trac] [Cyberduck] #11253: Mountainduck Copy from FSx to S3 seems broken?

[Cyberduck]

#11253: Mountainduck Copy from FSx to S3 seems broken?
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    Reporter:  jordibares  |      Owner:
        Type:  defect      |     Status:  new
    Priority:  normal      |  Milestone:
   Component:  core        |    Version:  7.7.0
    Severity:  critical    |   Keywords:  AWS, S3
Architecture:  Intel       |   Platform:  Windows 10
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 I am copying a tar file from my FSx server on AWS to my S3 bucket and
 although the system reports the copy successful and the data seems there,
 if I look from a different workstation (a local mac in this case), there
 are zero bytes copied.

 Only when I disconnect from mountainduck is the data released and appears
 on the S3 bucket.

 I don't know if has to do with any particular setting but this is highly
 disturbing as you can imagine.

 My configuration is

 Windows instance on AWS, FSX server and regular S3 bucket. I do have
 permissions and all that obviously.

 In terms of mountainduck settings..

 Smart Sync is off (I am on Online mode)
 No proxies
 Enable cache is  ON

 AWS S3 settings
 region EU london (eu-west-2)

 Using Windows10 Pro

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Ticket URL: <https://trac.cyberduck.io/ticket/11253>
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