Clicking on Home Bar won't get me back home

Hi, I’m having an issue with the Home Bar. Usually how it works is that I only hover the pointer and click on the Home Bar to go home, but sometimes it just doesn't work and just jiggles. On the first part of the video you can see my issue and on the second part is how it normally works and how I like it. I'm not sure if it's a bug or a feature, but does anyone know how to fix it? Thanks!

Reddit video