Missing connection error shows sometimes on existing connection

Sometimes when I am working with console.engint.openshift.com instance where I use OAuth authentication, I get following error in error log with no stack trace when trying to create a project or application on a connection

Could not create project, missing connection.

Then when I open Edit Connection wizard via context menu of the connection, there is an error in header of the wizard "Connection for the server with this token already exists."

Not sure what precisely it is causing and how to reproduce it with success rate 100 %.