Update KB5073723 breaks OpenSSH logins for users

Hallo,

i found out that since i installed the KB5073723 Update on my Windows Server 2019 the integrated OpenSSH (which i use for SFTP) was no longer successully authorized Users when they try to login with WinSCP for example which worked for years.

I have seen in the log that there was written "sshd: fatal: ga_init, unable to resolve user domain\\sftpuser"

it seems that the "\\" is one backslash to much!

After uninstalling KB5073723 and rebooting everything works as expected again!

Pls. take a look and fix this bug.

Thx

Wolfgang