Using SFTP results in "com.jcraft.jsch.JSchException: UnknownHostKey" despite host being in known_hosts

[EpicLPer]

As the title says, the plugin doesn't appear to be using the "known_hosts" file on Linux and just throws an exception with "com.jcraft.jsch.JSchException: UnknownHostKey".

I tried adding the host to the known_hosts file via ssh-keyscan -H -t rsa server.com >> ~/.ssh/known_hosts yet it doesn't seem to do anything and it still throws that error.

Please fix, thanks!