I am trying to use the burndown charts for a couple of months now, but they are really troublesome.
One issue we have is the blue line. Sometimes the left Y value is completely incorrect, and we have no idea how it is computed. as you can see from the screenshot, the left edge is completely incorrect. It says the initial remaining effort is 180, whereas the burndown should be starting at ~80
Can you please let me know how to better control this?
How can I control the blue line in the burndown chart?