It seems that the chart template for a resource staytime (Resource, Zone, etc) and the corresponding activities is broken in two ways: it defaults to a line chart instead of a point chart, and it listens to the On Update instead of the On Change.
To reproduce:
Open the statistics window for an Acquire Resource activity. Click the Pin button next to the Staytime and add a Staytime vs Time chart.
Result:
A stair step chart, which does not include the first few data points if the staytime is zero.
Expected:
A point chart, which includes the first few data points if they are zero,.
Demo model: Statistics chart.fsm
