#387 if style sheet == cross marks; then only first and second kind of cross mark is used

[leuko]

Example code:

\usetikzlibrary{datavisualization}
%\usepgflibrary{plotmarks}
\begin{tikzpicture}
\datavisualization[
    scientific axes=clean,
    visualize as scatter/.list={a,b,c,d},
    style sheet=cross marks,
]
data [format=named] {
    x=4,y=8,set=a
    x=5,y=9,set=b
    x=6,y=10,set=c
    x=7,y=11,set=d
};
\end{tikzpicture}

Workaround:
Include the PGF library plotmarks:

\usepgflibrary{plotmarks}

[Henri Menke]

I documented this behaviour because I don't think that datavisualization should load plotmarks by default. TikZ is already slow enough.