If I take a snapshot of a LineChart, the chart is shown, but the axis tickmark labels are not.

Attached is a sample test case (LineChartExport.java), which captures a snapshot image then renders it - the rendered image should include axis tickmarks on the LineChart, but it does not. Sample output of the test case is also attached (missingslices.PNG) - the chart with a blue background is rendered from an snapshot, the chart from with a white background is rendered normally in the scene - the two charts should be identical, but are not.

This issue is similar to "PieChart snapshot renders incorrectly" which had a workaround of adding the PieChart to a Scene before creating a snapshot. However in this case, the add to Scene workaround does not work.