I noticed that on Events — OctoPrint master documentation if I click "Available Events" in the table of contents or the "¶" next to the "Available Events" section header I get #available-events appended to the url. However, if I click the "Available Events" section header, I get #id5 appended to the end of the url and the resulting url (Events — OctoPrint master documentation) does not work (ie it does not link to the "Available Events" section).
I can't seem to be able to reproduce this (and even if I could, there would not be much I could do here since those links are generated by sphinx based on the inserted headers).
When I click on the link in the TOC, I get #available-events. When I click on the paragraph symbol next to the header, I get the same.
It depends if you consider it as broken I guess - clicking on the section header navigates you back to the ToC, whereas clicking on the paragraph symbol gets you the link to that section.