SSH Connector suddenly failed: Invalid UINT32 value: -2064479968

Hey there,

i just created a workflow to get a file from a SFTP modify it and upload it back again.

Everything worked out fine for several days, but today KNIME can´t connect via SSH Connector anymore.

Error Message:

Execute failed: DefaultOpenFuture[SftpChannelSubsystem[id=0, recipient=-1]-ClientSessionImpl[zoeppritz@ftp.digitecgalaxus.ch/137.116.205.202:22][sftp]]: Failed (IllegalArgumentException) to execute: Invalid UINT32 value: -2064479968

I can however connect via FileZilla with the same credentials as used in the SSH Connector.

How can i determine what the problem is here ?

Thanks for any help or other ways to connect to SFTP via KNIME.