PBS single file restore and corrupted files

[Poring]

Hello everybody!
There is:
- Proxmox 7.1 host
- win2019 vm + NTFS virtual scsi drive with deduplication.

- PBS 2.1 host
I do backup of this vm to PBS server, then choose "Single file restore", then trying to download some files and.... 50-60% of them do not open after download (corruped). It works with pdf, doc and xls files.

What am I doing wrong? Where to dig?
Examples of corrupted files is attached.

 

[mac.linux.free]

hello...I don´t think a deduplicated ntfs volume is working with filerestore.