SSH connections may fail with the message 'Error: This application has no instances you can ssh to' or may ask you a password during the connection initialization.
We are currently investigating this issue.
08:10 UTC : We have found the component causing this issue and restarted it. We are still investigating the root cause.
21/06 : The problem was most likely caused by the network instability observed at this time. We haven't detected any problems since.