Null character after drive letter when using sshfs.r or sshfs.kr and seems to interfere causing access denied

I am trying to use winfsp with a Windows 2019 server running OpenSSH. A null character is showing up after the drive letter and seems to interfere with accessing folders and files.

Used a hex editor and can see the character is \0 or 0 or null.

The sshd.exe version is 7.7.2.2

Tried this with Server 2012 running sshd.exe version 9.8.1.0 and seeing the same thing

The client OS version:
Edition Windows 11 Pro
Version 23H2
Installed on ‎5/‎11/‎2023
OS build 22631.5039
Experience Windows Feature Experience Pack 1000.22700.1074.0

winfsp installation:w

C:\Windows\System32\WindowsPowerShell\v1.0> winget install SSHFS-Win.SSHFS-Win
Found SSHFS-Win [SSHFS-Win.SSHFS-Win] Version 3.5.20357
This application is licensed to you by its owner.
Microsoft is not responsible for, nor does it grant any licenses to, third-party packages.
This package requires the following dependencies:
  - Packages
      WinFsp.WinFsp
(1/1) Found WinFsp 2023 [WinFsp.WinFsp] Version 2.0.23075
This application is licensed to you by its owner.
Microsoft is not responsible for, nor does it grant any licenses to, third-party packages.
Downloading https://github.com/winfsp/winfsp/releases/download/v2.0/winfsp-2.0.23075.msi
  ██████████████████████████████  2.10 MB / 2.10 MB
Successfully verified installer hash
Starting package install...
Successfully installed

Downloading https://github.com/billziss-gh/sshfs-win/releases/download/v3.5.20357/sshfs-win-3.5.20357-x64.msi
  ██████████████████████████████  4.85 MB / 4.85 MB
Successfully verified installer hash
Starting package install...
Successfully installed
C:\Windows\System32\WindowsPowerShell\v1.0>

Reproduce the reported access-denied behavior with the listed Windows, WinFsp, SSHFS-Win, and OpenSSH versions, using the installation command and screenshot as reference. No source file or test is named; done would be identifying the cause of the null character after the drive letter and verifying that file and folder access works without it.