Slaves/Nodes do not start after latest plugin updates.
Narrowed down to Trilead version 1.0.7

Causes error :
SSHLauncher

{host='xxx', port=22, credentialsId='myCredentials', jvmOptions='', javaPath='', prefixStartSlaveCmd='', suffixStartSlaveCmd='', launchTimeoutSeconds=60, maxNumRetries=10, retryWaitTime=15, sshHostKeyVerificationStrategy=hudson.plugins.sshslaves.verifiers.KnownHostsFileKeyVerificationStrategy, tcpNoDelay=true, trackCredentials=true}

[06/04/20 14:30:19] [SSH] Opening SSH connection to xxx:22.
Searching for xxx in /home/blabla/.ssh/known_hosts
Searching for xxx:22 in /home/blabla/.ssh/known_hosts
[06/04/20 14:30:19] [SSH] SSH host key matches key in Known Hosts file. Connection will be allowed.
ERROR: Server rejected the 1 private key(s) for blabla(credentialId:myCredentials/method:publickey)
[06/04/20 14:30:19] [SSH] Authentication failed.
Authentication failed.
[06/04/20 14:30:19] Launch failed - cleaning up connection
[06/04/20 14:30:19] [SSH] Connection closed.