Error creating/writing public key file on network drive "Bad file descriptor" -- tested on 9.5.0.0 and 9.8.1.0

[Saxomania]

Prerequisites

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• Make sure you are able to repro it on the latest version
• Search the existing issues.

Steps to reproduce

Windows: creating pub/priv key file works on default folder (if you dont enter any path) and for example on D drive (just a local volume) will work but will not work on a mapped network share.

Write rights are there so this should not be problem otherwise it couldnt write into my userprofile folder as well

Expected behavior

ssh-keygen -t ed25519 -C "Test"
Generating public/private ed25519 key pair.
Enter file in which to save the key (C:\Users\username/.ssh/id_ed25519):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in C:\Users\username/.ssh/id_ed25519
Your public key has been saved in C:\Users\username/.ssh/id_ed25519.pub

Actual behavior

ssh-keygen -t ed25519 -C "Test"
Generating public/private ed25519 key pair.
Enter file in which to save the key (C:\Users\username/.ssh/id_ed25519): Q:\documents\key
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in q:\documents\key
Unable to save public key to Q:\\documents\\key.pub: Bad file descriptor

Error details

Q is my mapped home drive on a network share
Documents is a folder inside it and its accessible 

an extract of "set" shows following variables:

HOMEDRIVE=Q:
HOMEPATH=\
HOMESHARE=\\server.domain.de\share\somefoldername\username

Environment data

PS Q:\> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.19041.5007
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.19041.5007
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Version

9.8.1.0

Visuals

No response