サイドバーに小さな問題があるかもしれません

@lovesgigi

Can you paste url?

ah… I check your video once.
But, I can’t understand your pointing probrem.

Now that video is looks like already became can’t check.

If you can up to web server url or screenshot with marking point that I will check again.

Your Lightning is latest version?

https://demo.lightning.nagoya/

Please try bellow

1. Appearance > Customize > Lightning Design Setting (Something changed)
2. Save and Reload and Check

I detected issue you make point.
Thanks your report.

Just a moment until fix this issue.