The discussion revolves around a missing custom header link icon after an update. dylanh724 reported the issue and suspected a favicon problem, providing screenshots and code excerpts. Johani replied that the functionality is provided by the “Iconified Header Links” theme component and suggested a solution by adding the icon name to the link configuration. However, dylanh724 tried the solution without success and found that others have experienced similar issues, linking to a related discussion on meta discourse. awesomerobot provided an answer to the issue on the same meta discourse thread.