I have a 3 node replicaset. I have changed one of the nodes to wiredtiger. I changed the config to point to an empty directory. The sync seems to start from fresh. But after a while I start getting the following error and the replication never finishes the sync. it just tries over and over again.

assertion 13436 not master or secondary; cannot currently read from this replSet member ns:config.settings query:{}