Cannot access customdata array

I can access customdata without an issue if customdata is not an array, hovertemplate formats the x points according to the 1st function correctly.

customdata: d.x.map((x) => {
          const years = Math.floor(x);
          const months = Math.floor(12 * (x % 1));
          if (years === 0) return `${months}m`;
          if (months === 0) return `${years}y`;
          return `${years}y ${months}m`;
        }),

        hovertemplate: `<b>${eyeNames[i]}</b><br>
            <i>Risk</i>: <br>
            <i>Risk</i>: %{y:.2p}<br>
            <i>Time</i>: %{customdata}<extra></extra>`,
      }));

To add another function to customdata, according to the documentation i need to convert customdata into an array, which i have done, but the hovertemplate no longer picks up customdata.

     customdata: [
          d.x.map((x) => {
            const years = Math.floor(x);
            const months = Math.floor(12 * (x % 1));
            if (years === 0) return `${months}m`;
            if (months === 0) return `${years}y`;
            return `${years}y ${months}m`;
          }),
          d.y.map((y) => {
            let p = y.toFixed(2);
            if (inverse1 === 0) return p;
            if (inverse1 === 1) {
              p = null;
            }
            return p;
          })
        ],

        hovertemplate: `<b>${eyeNames[i]}</b><br>
            <i>Risk</i>: %{customdata[1]}<br>
            <i>Risk</i>: %{y:.2p}<br>
            <i>Time</i>: %{customdata[0]}<extra></extra>`,
      }));

In hovertemplate if i write %{fullData.customedata} it picks up the array, but the functions map out every point instead of the single point hovered on the graph.

hovertemplate: `<b>${eyeNames[i]}</b><br> <i>Risk</i>: %{fullData.customdata[1]}<br> <i>Risk</i>: %{y:.2p}<br> <i>Time</i>: %{fullData.customdata[0]}<extra></extra>`, }));

What is the correct syntax here to access the customdata array and have the functions manipulate the hovered point on the graphs only, like in the first image, with the time variable. Thanks.

Empieza comparando las dos estructuras de customdata y las referencias de hovertemplate que se muestran en el issue. Comprueba el comportamiento de customdata y hovertemplate a nivel de punto de Plotly y, después, verifica el resultado con los ejemplos del informe. Se considera terminado cuando el punto sobre el que se pasa el cursor muestra los valores de tiempo y riesgo previstos sin expandir los arrays mapeados.