Issue with Custom Aggregation ("Double Sum") Reverting to Default "Sum"

We are currently integrating Flexmonster as our datagrid view component for the Observations module in our application, where pivoting and charting features are essential. While setting up a custom aggregation function, we encountered an issue that we hope you can help us resolve.

Context: We have added a custom aggregation named "double sum" and configured it to be available for number fields. The custom aggregation appears correctly in the list of available aggregations in the UI.

However, when we select "double sum" from the aggregation dropdown:

The selected aggregation automatically switches back to "sum".

No changes are applied, and the custom logic.

 
"use client";
import dynamic from "next/dynamic";

// Wrapper must be imported dynamically, since it contains Flexmonster pivot
const FlexmonsterPivot = dynamic(() => import("@/providers/PivotWrapper"), {
  ssr: false,
  loading: () => <h1>Loading Flexmonster...</h1>,
});

export default function PivotTableDemo() {
  const customAggregations = [
    {
      id: "doubleSum",
      label: "Double Sum",

      measure: (values) => {
        const sum = values.reduce((a, b) => a + b, 0);
        return sum * 2;
      },
      isNumeric: true,
    },
  ];

  return (
    <>
      <div>
        <FlexmonsterPivot
          toolbar={true}
          customAggregations={customAggregations}
          report={{
            dataSource: {
              type: "json",
              data: [
                {
                  id: 1,
                  trial__date: "2024-06-11",
                  trial__country: "West Africa",
                  trial__type: "Screening",
                  trial__status: "Planted",
                  trial__crop_name: "BASIL",
                  trial__protocol: "default",
                  volume_of_seeds: 10,
                  unit: "kg",
                  replication: 1,
                },
                {
                  id: 2,
                  trial__date: "2024-06-11",
                  trial__country: "West Africa",
                  trial__type: "Screening",
                  trial__status: "Planted",
                  trial__crop_name: "BASIL",
                  trial__protocol: "default",
                  volume_of_seeds: 10,
                  unit: "gr",
                  replication: 2,
                },
                {
                  id: 3,
                  trial__date: "2024-06-11",
                  trial__country: "West Africa",
                  trial__type: "Screening",
                  trial__status: "Planted",
                  trial__crop_name: "BASIL",
                  trial__protocol: "default",
                  volume_of_seeds: 10,
                  unit: "gr",
                  replication: 3,
                },
              ],

              mapping: {
                aggregations: {
                  number: ["sum", "average", "doubleSum"],
                  string: ["count"],
                },
              },
            },

            slice: {
              rows: [
                {
                  uniqueName: "trial__crop_name",
                },
              ],
              columns: [
                {
                  uniqueName: "unit",
                },
                {
                  uniqueName: "[Measures]",
                },
              ],
              measures: [
                {
                  uniqueName: "replication",
                },
              ],
            },
          }}
          //licenseKey="XXXX-XXXX-XXXX-XXXX-XXXX"
        />
      </div>
    </>
  );
}