A node which has relationshiplist nodes is not displayed in UI. After checking the logs, found this error. 

Self link JSON parsing error: Failed to parse relationship-list attribute. Parse resulted in error, Conflicting setter definitions for property "relationship": org.onap.aai.sparky.viewandinspect.entity.RelationshipList#setRelationship(1 params) vs org.onap.aai.sparky.viewandinspect.entity.RelationshipList#setRelationshipList(1 params)|

Adding a @JsonIgnore to org.onap.aai.sparky.viewandinspect.entity.

RelationshipList   setRelationship method might fix the issue

example:

@JsonIgnore
public void setRelationship(Relationship[] relationship) {
this.relationship = relationship;
}