EMP-Connector: Reconnect fails

Running on Heroku seems to throw error when trying to stop cometd

2018-10-02T03:15:42.243201+00:00 app[worker.1]: <<<<
2018-10-02T03:15:42.243161+00:00 app[worker.1]: {advice={reconnect=handshake, interval=0}, channel=/meta/connect, id=297, error=403::Unknown client, successful=false}
2018-10-02T03:15:42.244849+00:00 app[worker.1]: >>>>
2018-10-02T03:15:42.245023+00:00 app[worker.1]: [2018-10-02 03:15:42.244] Failure:[/meta/disconnect]
2018-10-02T03:15:42.245060+00:00 app[worker.1]: {failure={exception=java.nio.channels.AsynchronousCloseException, message={clientId=391c3uwfrupcxgf1uaexxljm6fow, channel=/meta/disconnect, id=298}, connectionType=long-polling}, channel=/meta/disconnect, id=298, successful=false}
2018-10-02T03:15:42.245063+00:00 app[worker.1]: <<<<
2018-10-02T03:15:42.245086+00:00 app[worker.1]: >>>>
2018-10-02T03:15:42.245199+00:00 app[worker.1]: [2018-10-02 03:15:42.245] Failure:[/meta/disconnect]
2018-10-02T03:15:42.245201+00:00 app[worker.1]: {failure={exception=java.nio.channels.AsynchronousCloseException, message={clientId=391c3uwfrupcxgf1uaexxljm6fow, channel=/meta/disconnect, id=298}, connectionType=long-polling}, channel=/meta/disconnect, id=298, successful=false}
2018-10-02T03:15:42.245202+00:00 app[worker.1]: <<<<
2018-10-02T03:15:57.247250+00:00 app[worker.1]: [HttpClient@411721666-48] ERROR c.s.e.c.EmpConnector - Unable to stop HTTP transport[https://cs43.salesforce.com/cometd/37.0]
2018-10-02T03:15:57.247263+00:00 app[worker.1]: java.lang.InterruptedException: null
2018-10-02T03:15:57.247265+00:00 app[worker.1]: at java.lang.Object.wait(Native Method)
2018-10-02T03:15:57.247266+00:00 app[worker.1]: at java.lang.Thread.join(Thread.java:1260)
2018-10-02T03:15:57.247269+00:00 app[worker.1]: at org.eclipse.jetty.util.thread.QueuedThreadPool.doStop(QueuedThreadPool.java:154)
2018-10-02T03:15:57.247271+00:00 app[worker.1]: at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89)
2018-10-02T03:15:57.247272+00:00 app[worker.1]: at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143)
2018-10-02T03:15:57.247274+00:00 app[worker.1]: at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:162)
2018-10-02T03:15:57.247276+00:00 app[worker.1]: at org.eclipse.jetty.client.HttpClient.doStop(HttpClient.java:252)
2018-10-02T03:15:57.247278+00:00 app[worker.1]: at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89)
2018-10-02T03:15:57.247280+00:00 app[worker.1]: at com.salesforce.emp.connector.EmpConnector.stop(EmpConnector.java:154)
2018-10-02T03:15:57.247282+00:00 app[worker.1]: at com.salesforce.emp.connector.EmpConnector$AuthFailureListener.onMessage(EmpConnector.java:334)
2018-10-02T03:15:57.339835+00:00 app[worker.1]: >>>>
2018-10-02T03:15:57.339956+00:00 app[worker.1]: [2018-10-02 03:15:57.339] Success:[/meta/handshake]
2018-10-02T03:15:57.339991+00:00 app[worker.1]: {ext={replay=true, payload.format=true}, minimumVersion=1.0, clientId=3bd0a4rek46fkg14j04vgo0dbb0, supportedConnectionTypes=[Ljava.lang.Object;@5ebb9ec0, channel=/meta/handshake, id=299, version=1.0, successful=true}