unusual error

[ilikebundy]

Has anyone seen this error before and be able to give me an idea what it relates to:
45K entries of below
2021-07-06T15:19:14.024+1000   ERROR   com.ibm.bi.flipper.proxy.ForwardToFlipperLeader   [Default Executor-thread-45]            NA                  flipper-service      This flipper node is not the current group leader but has received a request forwarded from another node.This probably means that the configuration group is not configured correctly.

Nothing changed in config and a single server with all FQDN's in Configuration group.

What might trigger this ?