@florent_biville I think the error might not be related with RelationshipProperties, as even removing its collection from the query and from the result object, I still get the same error:
Failed to complete request: org.springframework.data.neo4j.core.mapping.NoRootNodeMappingException: Could not find mappable nodes or relationships inside Record<{id: "0220687650", address: node<165>, wealth: node<164>}> for org.springframework.data.neo4j.core.mapping.DefaultNeo4jPersistentEntity@3e63bd6b