task "to do" not updated accurately

Discussion created by e7893c39f852ab742f8a7b41fb6d23011 on Jul 30, 2014
Latest reply on Oct 16, 2014 by 735ac1c94770a7da13219683e1d3f975
I think that the moment you enter a number in the "task estimate", it should automatically update the "To do". But, I observed that not working today for a team while we were doing the sprint planning.  Any idea why this is happening?