Was looking through the posts, and I’m finding that when in a forum post/discussion that the navigation slider overlaps and supersedes the Search (Magnifying glass)/Navigation/User Icon while in Chrome and Firefox. I was unable to duplicate this in any other situation or in IE/Edge yet.
Problem is the slider takes up the entire midsection of the navigation, and simply insuring the navigation overlaps or takes a higher layer priority than the slider should fix this.
Cheers!
Edit: Now included with screencap:
Note how the scroll bar overlaps the menu? This was replicated when I went home as well on both Home PC/Laptop and between Firefox and Chrome on Windows 10.