具有独立和子附录的 Algorithmicx 无法编译

Question

我将文档配置为可自行编译的章节。每章的配置如下：

\documentclass[crop=false,class=embedchap]{standalone}
\begin{document}
    \begin{subappendices}
        \input{merge-algo}
    \end{subappendices}
\end{document}

内容如下embedchap.cls：

% embedchap
% This package provides common settings for chapters embedded in the book
%
% When a chapter is compiled by itself is compiled as an article

\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{embedchap}[2019/09/01 Common configurations for the chapters embedded in the book]

% This class is based on KOMA script article class
\LoadClass{scrartcl}

% We want the title as in an article, instead of a book
\KOMAoptions{titlepage=false,fontsize=12pt}

% :: Language and charset
\RequirePackage[utf8]{inputenc}
\RequirePackage[french,american]{babel}
\RequirePackage[T1]{fontenc}

\RequirePackage{standalone}

\RequirePackage{appendix}


\RequirePackage{algorithm}
\RequirePackage{algpseudocode}

现在，如果的内容merge-algo.tex如下：

\section{Algorithm to handle multiblock simulations}
\begin{algorithm}
    \caption{Algorithm to merge a multi-block  simulation}
    \label{algo:merge}
    \begin{algorithmic}[1]
        \Procedure{MergeBlocks}{$blocks$}
            \State $blocks\gets$\Call{Sort}{$blocks$}
            \State $b_0 \gets blocks[0]$
            \State $n_x, n_y, n_z \gets$ \Call{GetDimensions}{$b_0$}\Comment{Get first block dimensions}
            \State $b_0\rightarrow$ \Call{SetStartIJK}{$0, 0, 0$}\Comment{The starting $i, j, k$ indices in the merged block}
        \EndProcedure
    \end{algorithmic}
\end{algorithm}

当我编译单个章节时，出现以下错误：

! Extra }, or forgotten \endgroup.
\@endfloatbox ...pagefalse \outer@nobreak \egroup
                                                  \color@endbox
l.13 \end{algorithm}

有什么帮助可以解决吗？