FTP Voyager Host Fingerprint

We are using FTP Voyager to automate SFTP connections to and from a vendor’s SFTP site.
The Vendor changed their host (we think) and now communication breaks down during the key exchange when we initiate a session. I’m not being prompted to accept a new host fingerprint and I don’t see a way to update or delete the host fingerprint through FTP Voyager.
Does anyone know how to fix this issue?