Issues with mega Menu

Hi, this is a great plugin, works well with regular wordpress nav menu. However I installed this onto my Mega Menu and it does not dispplay correctly. Instead of the horizontal menu I get the regular dropdowns. Is there any solution to this? Let me know, and thanks for the plugin!

https://wordpress.org/plugins/navception/