My web host went through some hardware upgrades, so they have a new NIC on the server and consequently the SSH Keys were regenerated - I need to find the ssh keys cached by the HTML Editor and remove them so they can be updated.

I tried deleting the settings, and recreating them, but the issue persists, so it retained the ssh keys.

I'm using Secure SFTP via SSH port 22

I think if you open a support ticket the developers can help you up real fast, I have to confess I haven't run into this yet.

Thanks, I followed your advice.