Sections in Google websites keep collapsing on each other when scrolling down

Edit: Not websites - Docs*. Hello everyone! Recently I've been experiencing a problem on Google, when I look inside the google docs. I've been working on several school assignments, but only this one has this issue. When I scroll down however, the list of contents on the left starts to glitch and collapse on itself. The section titles and their descriptions started mixing up with each other in result. I already tried updating the laptop and Google before but the glitch still remained. Does anyone please have any advice? I’d also really appreciate it if someone could check the document to see if the glitch appears for them, as I’m worried my teacher might not be able to view it properly.

file:///Users/elizavetak/Downloads/Bio%20IA%20n%20%20(2).pdf