Hi,
There are .wrapAll() and .unwrap() calls in that file, but I don’t think it is the cause either – it can be it, but I cannot say for sure. It can be any of the theme .js files, as well as an inline JS code. All I can see, this is attached to the body “scroll” handler. These two are the duplicated nodes, if that helps: https://i.imgur.com/eZhbDC2.png
