Using Moodle 2.0.2 and DragMath.
$$ \left( \begin{array}{ccc} 1 & 2 & 3 & 4 & 5\\-\left(1\right) & -\left(2\right) & -\left(3\right) & -\left(4\right) & -\left(5\right)\\ \end{array} \right) $$
When I create a matrix with more than 3 columns, only 3 columns will be displayed, with the additional column data wrapping into the next row.
Anyone else get this problem? Where do I start to fix it?