Copy folders from "Read-Only" Network share

Hi Guys,
I hope somebody can help me.
My problem is to copy folders (not files) from a read-only network share to any other SFTP-Server.
The Network-Share is Mapped at the windows explorer as network drive.
On the SFTP-Server I have full Access (read/write/execute).
WinSCP is running on Windows 10 Enterprise 2016 LTSB with an i7-6600U and 16GB RAM, 64-Bit.
I tried using version 5.11.2 and 5.13. On both I get the same Error Message.
WinSCP is installed as Commander and I use no scripting/automation to complete the copy-job.

On the photo, some sensitive information is cleared, but it has no matter with the problem itself. It just shows the full path of a specific file that couldn't be copied.
It's a little bit strange because some files are copied correctly and some of the files get some characters in front (~$) and they just have a size of 1KB and either renaming to its normal name I cannot open these files.
The full path has about 100 to 120 Characters including filename and extension, so this is not the problem I hope.
If you need the error messages in english I will try to get these from an english installed computer ASAP.
If you have any questions or need some more information please give a reply and I will get these information.

Thanks in advance.
Mike

If I understand it correctly, it not only WinSCP that has problem with the files, right? In that case you should ask the question on some general computing site, like https://superuser.com/

martin wrote:

If I understand it correctly, it not only WinSCP that has problem with the files, right? In that case you should ask the question on some general computing site, like https://superuser.com/

Thanks for this idea.
I tried to get the error with a WinSCP alternative and it's the same.
All regular files were copied and some corrupted files too.
I think on our servers are some file spawns which cannot be detected as regular file by WinSCP or other file transmission software, so the error occurs.
Thanks for your help!