After the upgrade to YouTrack 4.1 all our Agile Boards are showing a flat line where we previously saw a nice burn down chart.
Editing the value for the field used as "Estimation field" will move the whole line up or down accordingly but it's still a flat line.
We used a sandbox project where we activated Time Tracking and connected the estimation field to the Agile Board and entered some time spent but no burn down in the chart.
We watched the video for 4.1 but did not see any information about this.
So how do we get the burn down chart to start showing the burn down again...