Dashboard loading with empty, white screen / Not loadingIssue <!-- /*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: ; } } Dashboard loading with empty, white screen / Not loading Release<!-- /*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: ; } } Any Release Cause<!-- /*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: ; } } When selecting a Dashboard, the page starts to open but remains blank due to an invalid dashboard permissions record generates an IllegalArgumentException error and stops the dashboard from loading.While loading a dashboard, all the widgets show spinner or show "Loading" but they never load due to invalid user preferences. No error messages are displayed on the screen but there is an error in browser console with following error stack trace: js_includes_dashboards_2.jsx?v=05-24-2018_1317&lp=Fri_Aug_10_21_02_18_PDT_2018&c=31_354:39207 Uncaught TypeError: Cannot read property 'id' of undefined at Object.success (js_includes_dashboards_2.jsx?v=05-24-2018_1317&lp=Fri_Aug_10_21_02_18_PDT_2018&c=31_354:39207) at i (js_includes_dashboards.jsx?v=05-24-2018_1317&lp=Fri_Aug_10_21_02_18_PDT_2018&c=31_354:24018) at Object.fireWith [as resolveWith] (js_includes_dashboards.jsx?v=05-24-2018_1317&lp=Fri_Aug_10_21_02_18_PDT_2018&c=31_354:24018) at z (js_includes_dashboards.jsx?v=05-24-2018_1317&lp=Fri_Aug_10_21_02_18_PDT_2018&c=31_354:24020) at XMLHttpRequest.<anonymous> (js_includes_dashboards.jsx?v=05-24-2018_1317&lp=Fri_Aug_10_21_02_18_PDT_2018&c=31_354:24020) 2js_includes_concourse.jsx?v=05-24-2018_1317&lp=Fri_Aug_10_21_02_18_PDT_2018&c=31_354:5602 amb.MessageClient [INFO] >>> connection exists, request satisfied Resolution<!-- /*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: ; } } 1.Invalid User/Group/Role Permissions Review the permissions for the affected dashboard: https://<INSTANCENAME>.service-now.com/pa_dashboards_permissions_list.do?sysparm_query=dashboard%3D<DASHBOARD SYS_ID>Remove any Group permissions without a valid group, Role permissions without a valid role, or User permissions without a valid user. Where Valid = Working reference. 2.Invalid User Preferences The issue is due to an invalid sys_user_preference value for "com.snc.pa.ui.preferences_dashboards" To resolve the issue for affected user perform steps below: As an admin user go to sys_user_preference_list.doFilter for name = com.snc.pa.ui.preferences_dashboards and User = affected user's nameSelect the record and delete.User should Log out and log in again after deleting the preferences. Clearing the user preference for com.snc.pa.ui.preferences_dashboards, the user will lose some saved preferences as recently visited, last visited dashboard or any customizations the user has saved for dashboards.