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Since 2017.02 a button was added to the explorer which controls whether the labels show the last value. When a filter selection is made for which in previous versions the last values would be shown, the button is now turned on automatically instead. Note that this means the user can still turn of the last values by turning the button back off (clicking it). Also note that when a different selection is made (while the button is still on), the button will remain turned on even if <lastValueVisible> is not set to true for the new selection.
Note that in all casesversions, the last values are only shown for locations which do not have a custom label configured. Additionally, the values are only shown when a single parameter is selected in the data viewer. Finally, only values in the time span (relativeViewPeriod) configured for the timeSeriesSet will be found.
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