Unable to connect with private key certificates

[alabuzhev]

FarGroup#36 by @sensboston

NetBox (latest release from here) can't connect to Ubuntu on OracleCloud using private key certificate (converted by PuTTY).
It's starts connecting, something like "Authorizing" quickly blinks on message dialog and plugin falls back to the session menu.

Standard Windows sftp program and WinSCP are working fine so it's a 100% NetBox plugin bug.
Could you please fix?

P.S. If you need a log or some additional information, please describe how to get it. BTW, it looks like not specific issue but outdated code base.

[asuiu]

The NetBox is also asks for password, even in situation where the SSH key was explicitly passed as id_ed25519.ppk file, and File protocol used is SFTP or SCP.
WinSCP works well for the same host/connection, so it seems a NetBox issu and might be related to the above problem - but with different symptoms - asking for a password.