Windows Node Joining Linux Master

Hi! I've been working on migrating an ES cluster from Windows to Linux. It went pretty smooth but have run into an issue with a ES on Windows joining the cluster. Here's what I see in the logs:

[2017-12-15T13:27:48,916][INFO ][o.e.d.z.ZenDiscovery ] [node1] failed to send join request to master [{MASTER}{QSpArcEBR36stwxnB59egQ}{M_sRaowcTt2wlHIiP5WNoA}{10.10.10.157}{10.10.10.157:9300}{ml.max_open_jobs=10, ml.enabled=true}], reason [RemoteTransportException[[MASTER][172.17.0.2:9300][internal:discovery/zen/join]]; nested: IllegalStateException[failure when sending a validation request to node]; nested: RemoteTransportException[[node1][10.10.10.57:9300][internal:discovery/zen/join/validate]]; nested: IllegalArgumentException[Unknown NamedWriteable [org.elasticsearch.cluster.metadata.MetaData$Custom][licenses]]; ]

Port 9300 is open between this server and the master. On the master side it says:

[2017-12-15T20:27:49,226][WARN ][o.e.d.z.ZenDiscovery ] [MASTER] failed to validate incoming join request from node [{node1}{-_dQzvxmTy6hFxacXUUOxw}{0_7v0FDeSsK_0ObzQc7QkQ}{10.10.10.57}{10.10.10.57:9300}] org.elasticsearch.transport.RemoteTransportException: [node1][10.10.10.57:9300][internal:discovery/zen/join/validate] Caused by: java.lang.IllegalArgumentException: Unknown NamedWriteable [org.elasticsearch.cluster.metadata.MetaData$Custom][licenses]

any help would be greatly appreciated.

Thanks!

Which version are you using? Do you have the same set of plugins installed on all nodes?

5.6.3. Regarding plugins, nothing additional installed. The Linux servers are running the docker image from Elastic. I am disabling x-pack when starting it up via docker.

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