Hi,
I found that an empty menu on a submenu page was being rendered with only a horizontal line in it.
To fix the problem, I added the following line:
if (count($rows))
before
JMobileMenuHelper::renderMenu($rows, $params, $subrows);
on line 66 of mod_mj_menu.php in modules/mod_mj_menu
Hope this can help other people or be included in future releases of mobile Joomla.
Great product by the way!!!
Thanks guys,
Ariel