CI Discovery may fail in IRE with error "Found multiple non-dependency relations [parent:'xxxxx'/child:'xxxxxx'/type:'xxxxxx'] between payload itemsIssue While running discovery on devices, especially network switches, the identification may fail in the pattern with the following error message in the pattern log: "Found multiple non-dependency relations [parent:'PARENT_CI_SYSID'/child:'CHILD_CI_SYSID'/type:'RELATIONSHIP_TYPE_SYSID'] between payload items"CauseThere are some duplicate relationships with the same parent, child, and relationship type.ResolutionRemove the duplicates so that you have only one relationship with the same parent, child, and relationship type: /cmdb_rel_ci_list.do?sysparm_query=parent.sys_id%3D<<PARENT_CI_SYS_ID>>%5Echild.sys_id%3D<<CHILD_CI_SYS_ID>>%5Etype.sys_id%3D<<RELATIONSHIP_TYPE_SYS_ID>>&sysparm_view= Related LinksStack Network Switch - Stack serial numbers are referenced to the master switch on the Network Switch Pattern