Text Formatting ⇒ Enotez + hyperref: Endnote links do nothing when using custom chapter-based headings (TeX Live 2024)

[Jongomez]

Hello,

I’m working on a book project with endnotes grouped by chapter using the enotez package in TeX Live 2024.
The goal is:

• Endnotes grouped by chapter
  
  Chapter names replaced with custom titles (e.g. “KAPITULUA 1”, “HITZAURREA”, etc.)
  
  Hyperlinks working in both directions:
  • • Clicking the superscript in the text → jump to the note
      
      Clicking the note number → jump back to the reference in the text
      • Current issue
        
        With the code below:
        
        • The custom endnote headers work perfectly (the generic “Notes for chapter X” text disappears).
          
          But hyperlinks stop working completely: clicking the superscript number in the text does nothing.
          It doesn’t jump to the note, nor to the AMAI-OHARRAK chapter.
          • This happens consistently on TeX Live 2024.
            
            MWE
            
            (Uploaded here: main_nuevo_actualizado.tex — but reduced below for clarity.)
            
            [\newcommand{\GetChapterTitle}[1]{%
\ifcsname ChapterTitle@#1\endcsname
\csname ChapterTitle@#1\endcsname
\else
Chapter #1
\fi
}

% Custom mapping
\expandafter\gdef\csname ChapterTitle@1\endcsname{HITZAURREA}
\expandafter\gdef\csname ChapterTitle@2\endcsname{SARRERA}
\expandafter\gdef\csname ChapterTitle@3\endcsname{KAPITULUA 1}
% (… and so on)

% Custom header override
\makeatletter
\renewcommand*\enotez@heading@chapter[1]{%
\par\bigskip
{\centering\Large\bfseries \GetChapterTitle{#1}\par}
\medskip
}
\makeatother

            
            Effects:
            Feature Works?
            Custom chapter titles in endnotes ✔ Works
            Correct grouping of notes per chapter ✔ Works
            Hyperlinks to notes Broken
            Hyperlinks back to text Broken
            
            Question
            
            Is there a way to keep the custom chapter-based endnote headings and preserve the hyperlink functionality?
            
            It seems that redefining \enotez@heading@chapter disables something internal related to hyperref anchors, but I don’t know how to restore it.
            
            Any hint, workaround, or correct approach is greatly appreciated.
            
            Thank you!