"CAB Attendee -> Attending for tasks" is not showing in the "Selected" column and is still showing in the "Available" column after adding it as embed list to any section on the change_request form by configuring the form layoutDescription"CAB Attendee -> Attending for tasks" is not showing in the "Selected" column and is still showing in the "Available" column after adding it as embed list to any section on the change_request form by configuring the form layout.When you add "CAB Attendees" as embed list to a section such as "Schedule" on the change_request form, you already move "CAB Attendee -> Attending for tasks" from the "Available" column to the "Selected" column. However, if you try to configure the form layout again, you will see that "CAB Attendee -> Attending for tasks" is not showing in the "Selected" column and is still showing in the "Available" column. If you click Cancel without doing anything, "CAB Attendees" is still showing as embed list on the "Schedule" section.Steps to Reproduce 1. Add "CAB Attendee -> Attending for tasks" as embed list to the "Schedule" section on the change_request form by configuring the change_request form layout. Move "CAB Attendee -> Attending for tasks" from the "Available" column to the "Selected" column. Click "Save".2. Try to configure the change_request form layout again. Click the section "Schedule", you will notice that "CAB Attendee -> Attending for tasks" is not showing in the "Selected" column and is still showing in the "Available" column.3. If you click "Cancel" without doing anything, "CAB Attendees" is still showing as embed list on the "Schedule" section on the change_request form even if "CAB Attendee -> Attending for tasks" is not showing in the "Selected" column. Now it seems we are not able to remove the embed list "CAB Attendees" from the "Schedule" section once it is added to the section.WorkaroundManually delete the sys_ui_element record representing the affected embedded list in the form section.Related Problem: PRB1453869