[Bug]: sftpserver is duplicating files and skipping files when we have large number of files in S3

[svarmasscinc]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).

Bug description

sftpserver is duplicating files and skipping files when we have large number of files in S3
We have around 200 files in S3 and when we download using sftp client like winscp or filezilla, we see duplicate files and some files are skipped.

Steps to reproduce

1.Have around 200 files in S3.
2.Setup sftp user to have permissions to download from S3.
3.Download files from S3 using winscp.
4. You will see that some files are duplicated.
5. Some files are skipped.

Expected behavior

All files should be download without duplication or skipped.

SFTPGo version

2.6.2 636a1c2

Data provider

S3

Installation method

Community RPM package

Configuration

N/A

Relevant log output

N/A

What are you using SFTPGo for?

Medium business

Additional info

N/A