Warum dupliziert pgfplots meine erste symbolic coordinate?

\documentclass[tikz]{standalone}

\usepackage{mathpazo}
\usepackage{pgfplots}

\pgfplotsset{
    compat=1.18,
}

\begin{document}
\begin{tikzpicture}
    \begin{axis}[
        ybar,
        ymin=0,
        ymax=45,
        % enlarge x limits=false,
        height=5cm,
        width=13cm,
        scale only axis,
        symbolic  x coords={
            MFC,
            MFC*,
            MIO,
            MOC,
            MIC,
            MVD,
            MPL,
            MPL*,
            VSI,
            ME,
            MCC,
            TLL,
            others,
        },
        nodes near coords,
        nodes near coords align={vertical},
        ylabel={Number of articles},
        x tick label style={
            rotate=90,
            anchor=east,
        },
    ]
        \addplot [
            draw=none,
            fill=gray,
        ]coordinates {
            (MFC, 25)
            (MFC*, 13)
            (MIO, 7)
            (MOC, 4)
            (MIC, 2)
            (MVD, 28)
            (MPL, 38)
            (MPL*, 2)
            (VSI, 16)
            (ME, 15)
            (MCC, 2)
            (TLL, 3)
            (others, 5)
        };
    \end{axis}
\end{tikzpicture}
\end{document}