NPE in monkeygraph

I have a custom fit contributor and I'm trying to view the graph with monkeygraph, however when I load the IQ and FIT files I get (3.1.7)

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at com.garmin.monkeybrains.fitgraphs.graph.FitGraphXYDataset.<init>(FitGraphXYDataset.java:63)
at com.garmin.monkeybrains.fitgraphs.ui.MainUiController.buildCharts(MainUiController.java:163)
at com.garmin.monkeybrains.fitgraphs.ui.MainUiController.buildTabs(MainUiController.java:145)
at com.garmin.monkeybrains.fitgraphs.ui.MainUiController.actionPerformed(MainUiController.java:134)

If I decompile the class in the fit-graph.jar it looks to be coming from

List<Long> list = new ArrayList(this.mData.keySet());

and since mData is

this.mData = this.mContext.getRecordModel().getDataSet(fitNum);

it would indicate some problem with the fitNum not hitting a Map key(?) which is strange since I have

Nik over 6 years ago

Strange thing is that a file from the simulator can be opened but a file from my Edge 530 throws the NPE. Tried debugging it with Eclipse but apparently the line numbers don't match since my breakpoints miss.