Up to about two months ago I can confirm that the mega menu was working fine in both the desktop version of my site and the mobile version. Initially there was some issues which you resolved with code in custome css:
However recently I was looking at the website on mobile and found that there was no toggle menu on the mobile version just two parrallel lines with a blank space between tham where the mega menu would have sat between them.
I have chacked other setting menu still set to responsive, bootstrap disabled etc.
The only change since this was last working has been joomla updates which is now at version 3.4.8.
Is there anything that should make the menu dissapear on mobile version like this?