"Service" and "Service Offerings" reference fields are not showing any values in incident form.<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } Issue: "Service" and "Service Offerings" reference fields are not showing any values in incident form. Steps to Reproduce: 1.Login to instance 2.Navigate to incident.LIST 3.Open any incident. 4.Click on service field search look up icon 5.Observe no records are visible. Cause: The most probable cause is several cmdb_ci classes are marked as Principal class = true. As per OOB behaviour:If you would like exactly 10 principal classes to be displayed on the Incident form, the system currently provides the following options:Do not mark any classes as principal:In this case, all available classes will be displayed on the Incident form, including the desired 10 classes along with any additional classes configured in the system.Mark exactly the 10 required classes as principal:Only these 10 selected classes will be visible on the Incident form. All other classes will be hidden.Mark only a subset of the 10 classes as principal:Only the selected subset will be displayed on the Incident form, while the remaining classes will not be visible.Resolution: 1.Navigate to https://instance.service-now.com/cmdb_class_info_list.do?sysparm_query=principal_class%3Dtrue&sysparm_view&sysparm_first_row=1 2.Set the Principal class = false. Alternative approach: 1.Navigate to https://instance.service-now.com/nav_to.do?uri=cmdb_class_info.do?sys_id=25938221535592108e66dd0b10e5e6cd 2.Set the Principal class = true. References: https://www.servicenow.com/docs/r/servicenow-platform/configuration-management-database-cmdb/update-principal-class-filter.html