Cannot access DFS folder which already map network (drive S:) with windows 10 2004

Copper Contributor
Hi all,
We map DFS namespace with Drive S:\ use GPO

Windows 2004, sometime we can access to S:\ successful, but click to folder happen error


We still use successful with: 

 - \\DFSnamespace\public
 - \\FileServer\public
 - Run command: net use s: /del ; net use s: \\DFSnamespace and access s: again.

Windows 10 v1803, 1903 still work.

Microsoft Network Monitor show:
SMB2:R  - NT Status: System - Error, Code = (599) STATUS_PATH_NOT_COVERED  CREATE (0x5)
SMB2:R  - NT Status: System - Error, Code = (186) STATUS_FILE_IS_A_DIRECTORY  CREATE (0x5) 
Please support help us.
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