The argumentAxis and valueAxis min and max properties were replaced by the visualRange property. Just like min and max, the visualRange property allows you to indicate a start value and/or an end value to specify the range that your chart should display, regardless of the data values.
To persist the properties when refreshing your widget on a dashboard, make sure that the visualRangeUpdateMode property is also selected, and is set to keep. This new property allows you to specify the behavior of the values set through the visualRange property.
Click here to learn more about visualRange and visualRangeUpdateMode.