Symptoms
While loading a dashboard, all the widgets show spinner or show "Loading" icon but they never load
Cause
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
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:
1. As an admin user go to sys_user_preference_list.do
2. Filter for name = com.snc.pa.ui.preferences_dashboards and User = affected user's name
3. select the record and delete.
4. 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.