This is a bug in the code that got introduced with a small design change. Pls make a small change in the code in the file [theme directory]/framework/extensions/stylizer.php –
Around line number 378, you should find
$output .= "\n" . '#header-area {';
Replace that with –
$output .= "\n" . '#header-area-wrap {';
This change will be part of the next update and hence no need to redo this after next update.
Pls make sure you set the appropriate sized image and do not repeat – 1920px min width is preferred unless you are ok with an appropriate background color appearing on either side. Thanks for bringing this to my attention.