I haven't received the best support on this module, surprising since it is a paid module for Drupal. But I will give it another shot.

I have a megamenu that opens on Hover and says active as people interact with it.

Within that panel I have a popup calendar (JQUERY UI Calendar) so people can enter their start and departure date, and then be taken to a view.

When one interacts with the calendar -- it closes the menu. Essentially, you hover over the popup date picker (calendar) the menu behind it closes.

Is there any code or css change I can make to keep the panel open when one is interacting with the calendar?