Hi,
We don't have any stacktraces, but we see the following message show up repeatedly in the jgroups debug logging, on the node that is joining the cluster:
DEBUG FLUSH - O14WXPSOA-13860: timed out waiting for flush responses after 2000 ms. Rejecting flush to participants [O12WXPSOA-61109, O14WXPSOA-13860]
I attached the log file