The situation

I've done a simple ToC: enter image description here

When you click it, it redirects to the page, and shows a blue rectangle:enter image description here

The issue

I don't know why this happens. I have currently two windows opened in overleaf with the same code for the ToC, same packages (they're the same project) and in one I get this blue colored ToC, which is desirable. But in the newer one this doesn't happen.

I've checked hyperref and other packages' documentation, but it says nothing about this. Btw, the package xurl causes a fatal error in one project and loads without error in the other one.

The projects consist of same code, same packages… I suspect that the newer project got updated while the older one didn't update to the packages' new libraries, hence the differences. But maybe someone else knows more.

My code

\usepackage{comment} % Permite crear bloques de comentarios en el código
\allsectionsfont{\selectfont\sffamily} % USE PACKAGE sectsty
\usepackage[usenames, dvipsnames]{color}

\allsectionsfont{\selectfont\sffamily} % USE PACKAGE sectsty

    colorlinks, % set true if you want colored links
    linktoc=all, % set to all if you want both sections and subsections linked
    linkcolor=black, % choose some color if you want links to stand out
  • Where do your two documents differ? Are their compiled versions both newer than their *.tex files? Did you try an offline LaTeX editor/compiler to exactly know what happens during compilation and that it's a LaTeX issue (just to be sure)? Could you provide a MWE (minimal working example)? – Nepumuk Sep 28 '19 at 8:52
  • The problem has solved itself. I did nothing. I guess this kind of thing happens when you're using cloud compilers. – dmz Sep 28 '19 at 12:39
  • Second edit: The problem dissapeared when I copied the project (made an exact copy of it in my main page in overleaf). – dmz Sep 28 '19 at 12:58

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