I have installed RabbitMQ in centos in node1(master) and node2(slave) is 3.8.2 Erlang 22.2 lower version and added new node 3 (slave) is RabbitMQ 3.9.8 Erlang 24.1,when i clustered node1 and node 2 is shows fine and but node 3 is i can able to join the cluster when i see the RabbitMQ Overview Node statistics not available in the node3.
when check the cluster status all three nodes are able to see and policy
i compared both version management plugin enabled.
enabled rabbitmq-plugins rabbitmq_management and restarted services.
node1 and node 2 when i check the management below screen shot.

when i check the 3rd node UI management console below screen shot.

kindly suggest if anything i missed.