In a reference field , selecting New and having a watch list on the reference view causes reference icon (magnifying glass) not to appear.
Steps to Reproduce
Navigate to Incident > Open and open any incident.
In the related records section, select the search icon (magnifying glass) next to problem.
When the list displays, click New.
Right-click in the form header and choose Configure Form.
Double-click Group List so it is now on the selected side and click Save.
In the problem reference view, and note that the Group List does not have a search icon next to it.
After carefully considering the severity and frequency of the issue, and risk of attempting a fix, it has been decided to not address this issue in any current or future releases. We do not make this decision lightly, and we apologize for any inconvenience. If you have any questions regarding this problem, contact ServiceNow Customer Support.
Related Problem: PRB1204753