Reproduce:

• Create a process report displaying the average process instance duration grouped by the start date of the process instance, visualized as table
• Sort the table by the duration column
• Change the aggregation to maximum

Expected:

• The table is now sorted by the maximum process instance duration

Observed:

• The table is still sorted by the average process instance duration

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Workaround:
Save the report and refresh the page.

Hint:
We need to trigger an evaluation request after changing the aggregation. This request is only necessary when we sort by value columns.