Multi-page Figure with subcaption package

Question

I have a figure with subfigures defined using the subcaption package (*not the deprecated subfig or subfigure). I need the parent figure to span two pages with two subfigs on each page. I have achieved this using the \ContinuedFloat command, however my subfigure numberings are resetting between pages instead of resuming.

Below is a minimal example:

\usepackage{graphicx,subcaption}

\begin{figure}[H]
  \caption{My Figure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 1}
        \includegraphics[...]{something.jpg}
    \end{subfigure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 2}
        \includegraphics[...]{something.jpg}
    \end{subfigure}
\end{figure}
% allow break
\begin{figure}[H]
    \ContinuedFloat % continue from previous page
    \begin{subfigure}{\textwidth}
        \caption{Fig 3}
        \includegraphics[...]{something.jpg}
    \end{subfigure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 4}
        \includegraphics[...]{something.jpg}
    \end{subfigure}
\end{figure}

In this example 'Fig 3' and 'Fig 4' are incorrectly labelled (a) and (b) instead of (c) and (d).

How can I resume the subfig numbering correctly?

Answer 1

It works for me (once I make your example compilable)

subcaption.sty    2013/02/03 v1.1-62 Sub-captions (AR)
 caption.sty    2013/02/03 v3.3-65 Customizing captions (AR)
caption3.sty    2013/02/03 v1.5-62 caption3 kernel (AR)

\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{subcaption}
\listfiles
\begin{document}
\begin{figure}[H]
  \caption{My Figure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 1}
        \includegraphics[]{something.jpg}
    \end{subfigure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 2}
        \includegraphics[]{something.jpg}
    \end{subfigure}
\end{figure}
\clearpage
\begin{figure}[H]
    \ContinuedFloat % continue from previous page
    \begin{subfigure}{\textwidth}
       \caption{Fig 3}
        \includegraphics[]{something.jpg}
    \end{subfigure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 4}
        \includegraphics[]{something.jpg}
    \end{subfigure}
\end{figure}

\end{document}

Answer 2

According to https://tex.stackexchange.com/a/15693/44458, \phantomcaption can be necessary under certain circumstances. In my case of TexLive 2012 in Xubuntu 12.04 it helped to solve the problem:

\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{subcaption}
\listfiles
\begin{document}
\begin{figure}[H]
  \caption{My Figure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 1}
        \includegraphics[]{something.jpg}
    \end{subfigure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 2}
        \includegraphics[]{something.jpg}
    \end{subfigure}
    \phantomcaption % new inserted command
\end{figure}
\clearpage
\begin{figure}[H]
    \ContinuedFloat % continue from previous page
    \begin{subfigure}{\textwidth}
       \caption{Fig 3}
        \includegraphics[]{something.jpg}
    \end{subfigure}
    \begin{subfigure}{\textwidth}
        \caption{Fig 4}
        \includegraphics[]{something.jpg}
    \end{subfigure}
\end{figure}

\end{document}