"Server refused our key" after updating to Ubuntu 22.04 beta on a LAMP stack

Hi,

I have a Lampstack on Digital Ocean. After updating to Ubuntu 22.04 I get:

Using username "root".
Server refused our key.
Authentication failed.

I log in as root with a privatekey.ppk and have done it for years.

I can still log in via SSH with PuTTY.

Any idea on how to resolve this?

Thanks
Ben

Make sure you are using the latest version of WinSCP.
You might need this change:
Issue 1952 – Support rsa-sha2-256 and rsa-sha2-512 SSH public key algorithms

:)