Hey guys,
I am new at Jira Cloud but I have spent for more than 2 year for using Jira Server, but when i'm using Jira Cloud version, my burndown chart are not show anything. Normally, when I estimated time for sub-task and let the parent task sum them up all the time estimated and show them in Burndown chart. But, in Jira Cloud, I'm also estimated all the sub-task under the Story, but when I'm start the sprint and check my burndown chart report, It showed nothing. Anyone can explain to me why and how can I fix this in my situation? Thank a lot guys!