Multiple Knowledge Base not displaying categories in Service Portal - Support and Troubleshooting

Multiple Knowledge Base not displaying categories in Service Portal Issue  Symptoms Knowledge Base are not showing categories in Service Portal

Empty knowledge categories list

Cause The root cause of the issue is the customised version of the widget "KB Categories - KBv3"

Resolution Revert the custom widget to the out-of-box (OOB) widget

Go to the portal page where the categories are missing. Click Ctrl + Right-click on the widget and it will give you a list of options Choose Instance in Page Editor and check the Widget if it is a customised version of the widget Modify the UI page to use the out-of-box (OOB) widget "KB Categories - KBv3" by choosing in the widget dropdown and Save If you have not added a custom version and have modified the out-of-box (OOB) version, you need to go to the platform or advanced view. In the navigation bar, type in sp_widget.list to go to the list of Service Portal widget records. Filter in the Name or the sys_id of the widget. In the Versions related list, click both Custom and Upgrade version Click on Action on selected tows > Compare > Revert to Selected version which is the OOB version Save.