I am new to using the Cumulative Flow Diagram but the historical data does not make sense to me.
I have a Kanban board populated with all issues from several projects. The board has 6 columns, one column ("Testing") contains issues from a single status ("In testing").
I filter the Cumulative Flow Diagram on a single project (swimlane) and a single column ("Testing"), using a custom time-range of a week.
Comparing a snapshot from a particular date on the Cumulative Flow Diagram to using the following JQL: project = myproject and status was "in testing" DURING ("2019/02/13 17:05","2019/02/13 17:06"), I get 5 from the diagram and 29 from the JQL. 29 being the correct figure. I have taken several such snapshots and the Cumulative Flow Diagram is always too low.
Why does the Cumulative Flow Diagram not show me the correct snapshot values?