Summary: Due to duplicate AJAX calls, the requests submitted from FormModeler page anchors when a user clicks on a menu item is erroneously sent twice. This results in the Header Panel being hidden. This behavior only occurs in Google Chrome browser. Use an alternate browser till a fix is available.
Cause: The request's submitted from form modeler page anchors were duplicated, request was sent twice.
Consequence: Header panel for form modeler screen was hidden.
Fix: Send only one single ajax request on form modeler page anchors.
Result: Header panel for form modeler is always visible.