Redirected folders, path does not exist?

Question

Windows

Good afternoon!
Redirected folders policy deployed
Today, the following happened to one user:

This is when saving from any program to this folder starting with "G"
It saves normally on any path to this folder
The path itself is available through Explorer and files from it open, but when creating a new folders in the folder "G ..." the wheel turns until it turns blue, only restarting the explorer helps.
The logs are clean
With the rights of the folder, everything is fine
The systems are identical for everyone, from the same image, with the same software, but the problem is only here
From my machine, under my account, I calmly save to the same folder "G ..." The
computer was rebooted, the server is not
What can be wrong?
PS
I noticed the following: I
open the user's folder on the server, on the client I create a new folder in the root, it is created, the files are transferred, but I do not see any changes on the server ... No new folders, no files transferred. As if everything is done on the local machine.
Renaming "G..." to "1" I see changes

Answer 1

I found out with all possible tests that the problem is in the computer, and as it turned out, not in one, but several
It freezes, that everything is fine in the logs and I can’t get to the root of the problem, I will have to demolish the system