After a sprint was started a new issue was added. There had already been some work done on the issue but when it was added to the sprint it had 12 hours remaining but 77 hours are added to the sprint making the burndown completely wrong.
Hey there, Guðjón.
It is a default behavior of GreenHopper's Burndown Chart to show the incorrect value when you added new issue(s) to the active sprint. The rule of thumb of Scrum is that when a sprint has started, no new issues should be added or removed to ensure that the data is accurate and the chart is plotted correctly.
In the future, ensure that you plan the sprint and ensure that all the necessary issues are added into the sprint before you start it. Hope this helps.
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