The context menu does not load on clicking the form header and the reference icons will not respond.Issue The context menu does not load on clicking the header and the reference icons will not respond. On clicking on the hamburger icon at the left side of the form header to click the UI actions such as form layout, , the OOB UI actions do not respond and will throw the following error in the console. Uncaught TypeError: Cannot read property 'getElementsByTagName' of undefined The issue will not be reproduced when the user has the user preference "On-demand" instead of "With the form" for the forms related list loading.CauseThe issue is caused because of the corrupted Related list on the affected view.ResolutionTo resolve the issue, review the related list, and remove the affected related list.