Hi, sorry for the late response .
I have checked it on mobile devices and its working perfectly fine and i didn’t notice any kind of bugs .
Good job, 5 star 🙂
By the way, please add this fix within the theme’s core css and reupload it on themeforest so that other users won’t have to face this bug if they need to use ubermenu with Invent theme .
Finally Invent is now officially ubermenu supported