My burndown chart is messed up

[Le Minh _FGW DN_]

I just move all backlog to current Sprint (which is going to end this weekend). Now it messed up all my project burndown chart and I brought it back to Backlog but the line still there. Are there any ways to redo it? 

Thanks in advance :(

[Trudy Claspill]

I don't think there is a way to reset the burndown chart for a sprint. If you added the issues it would show the uptick for new work added in the red line. When you remove the issues it should show a downtick. Is you did that on the same day, then the two actions will overlay each other in the chart.  As far as the burndown line, It looks like it is unchanged to me, which would be correct if there was no net change in the committed work for the sprint.