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Webflow and Mmenu

we are using Webflow and it is an awesome tool to work with! After our designer creates the website in webflow, our developer simply integrates the export package into our CMS (Kentico 9). All this works really well.
However, we recently ran into an issue and we have a hard time trying to fix it. We are using Mmenu ( as a mobile navigation. Here is an example website which integrates the webflow design into our CMS (with Mmenu included):

If you run this site on an Android device (like galaxyS5) you will notice that you cannot scroll to the bottom of the page. If you want to test it, and don’t have an android device then you can also test it in chrome mobile debugger as galaxy-device (same issue there). After scrolling down about 2/3 of the page, it starts to prevent scrolling further. Now, we have this problem only in combination with mmenu. We realized that is has something to do with the Webflow.scroll event in the Webflow.js (line 226) :
Webflow.scroll = eventProxy($win, scrollEvents);
If we uncomment this line, everything works fine (except all scroll related webflow events). We spent a lot of time trying to figure this out but to no avail. Can you please help us with that?
I created a simple Website which uses webflow.js for debugging: (no CMS here, just plain simple HTML with Mmenu and Webflow).
Maybe you can also take a look here if you don’t want to see the CMS References.

I am not sure what causes this, but when i delete your element "<nav id=“menu”…>

it works again. So there might be some interference with that id or class?

Thank you for your reply! Yes, this problem only happens when we combine webflow together with mmenu. In the end the main reason for the page not scrolling down in android devices is that scroll event listener:

Which gets added through webflow.js (line 225):