File backup completed with issues; Cygwin this time

Hi there,
I have the common issue about the file backup errors due to the 0 bytes size files.
This time is about python in Cygwin.
I tried to exclude the directory via General > File Backup settings:

But it didn’t help, I’m still getting the same errors every time.
I don’t have in Client settings clicked “Separate settings for this client”.

It seems that is remembering to backup these 2 files and keeps retrying it.
Maybe I have to reset the indexing somehow?
Is there a way to do it clean without messing up with the existing backups?
Couldn’t find anything about it in the documentation.

Client is Windows 10 Pro 21H2 with UrBackup 2.4.11
Server is Debian 9 with UrBackup 2.4.14

Snippets from client backup log:

2022-08-10 07:11:12: FileSrv: Sending file (normal) 3XPx5Gal1GaFiG8l6cyj|C/cygwin64/bin/python metadata_id=1467915
2022-08-10 07:11:12: FileSrv: Mapped name: \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy13\\cygwin64\bin\python
2022-08-10 07:11:12: ERROR: FileSrv: Could not open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy13\\cygwin64\bin\python. The file cannot be accessed by the system. (code: 1920)
2022-08-10 07:11:12: FileSrv: Received a Packet.
2022-08-10 07:11:12: FileSrv: Sending file (normal) 3XPx5Gal1GaFiG8l6cyj|C/cygwin64/etc/alternatives/python metadata_id=1468141
2022-08-10 07:11:12: FileSrv: Mapped name: \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy13\\cygwin64\etc\alternatives\python
2022-08-10 07:11:12: ERROR: FileSrv: Could not open file \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy13\\cygwin64\etc\alternatives\python. The file cannot be accessed by the system. (code: 1920)

0-1660108269-Waiting for file transfers...
2-1660108271-Error getting complete file "3XPx5Gal1GaFiG8l6cyj|C/cygwin64/bin/python" from PANDORUM. Errorcode: CANNOT_OPEN_FILE (3)
2-1660108271-Error getting complete file "3XPx5Gal1GaFiG8l6cyj|C/cygwin64/etc/alternatives/python" from PANDORUM. Errorcode: CANNOT_OPEN_FILE (3)
0-1660108279-Waiting for file hashing and copying threads...
1-1660108279-Metadata file and "/sharedfolders/backup_md1/UrBackup/PANDORUM/220810-0705/C/cygwin64/bin/python" (id=1467915) do not exist. Skipping applying metdata for this file.
1-1660108279-Metadata file and "/sharedfolders/backup_md1/UrBackup/PANDORUM/220810-0705/C/cygwin64/etc/alternatives/python" (id=1468141) do not exist. Skipping applying metdata for this file.
0-1660108339-Writing new file list...
0-1660108344-All metadata was present