I am getting the below error
Search head cluster member (https://hesplsrhc001:8089) is having problems pushing configurations to the search head cluster captain (https://hesplsrhc004:8089). Changes on this member are not replicating to other members
did you ever figure this out?
That could be because member which is trying to notify changes happened to captain is out of sync from other members.
try to do rolling restart of search head cluster.