Hello,

you screenshots clearly show that there is a filter set on the pivot charts on the field "Cal. year / month".

If you add more data to the pivot table source, and refresh the pivot charts, you will also need to adjust your pivot table / chart filters to plot the data for the desired month.

Or you may want to use a slicer instead of a filter. Or a timeline. These are much more helpful for the end user to determine and change what the parameters for the chart are.

cheers, teylyn