Just doing simple tests with two data nodes and one non-data node. Deploying kibana 4.3 and ES 2.1 from scratch.
Initially marvel is showing 3 nodes, all is green and peachy. If I stop and a node, Marvel shows it's down. However when I start the node entry seem to be somehow 'duplicated'
This can be replicated for both data and non-data es nodes.
Links under node names have different UID even though node names are shown identical.
If I click on node reported as offline I can see it's historical data.
If I stop master node, the newly elected master appears as new node again.
And bringing the node which was previously master creates yet "new" node again.
If I delete
.marvel-YYYY.MM.DD index as suggested in Node names missing after upgrading ES and Marvel to 2.1, KB to 4.3.0 then display page comes to normal.