Human v 3.3.9 Issues

Dera Hueman Support Team,

Further to my previous repot on the problems and issues with this version, There are a lot of more issues showing up:

1. On FF and ie, upon scroll, content disappears – right sidebar joins the left sidebar.
2. Header, despite the default “sticky” option selected, disappears upon scrolling down.
3. upon scrolling down sidebars and the content sort of wobble.

4. In the release notes, it says, “You can control the sticky option in the customizer live panel, in Content > Sidebars, either for desktop, mobile or both.”- There is no such sequence of options available on admin panel.

Please look into it and advise.