Node in-memory does not start

Hellow everybody ,
I am trying to create a replicaset with 1 node in-memory and 2 nodes in disk. In all cases I set an specific path for each node. I set the parameter writeConcernMajorityJournalDefault as false. (If any voting member of a replica set uses the in-memory storage engine and writeConcernMajorityJournalDefault is true, “majority” write operations may fail.)
But the in-memory node does not start.
How so?