We are using GH 6.1.2 and while I see the Remaining times showing up in the Detail View for a bug, I am not seeing the Estimating (Original Estimate) field showing up in neither the Detail View nor in the Sprints in the Sprint/Backlog view of the Planning Board (Scrum).
According to the documentation here, https://confluence.atlassian.com/display/GH/Estimating+an+Issue I should be able to see them:

But, while I do see the Story Estimate, I am not seeing it for the Bug as seen in the download from the documentaiton listed above.
There are valid values in the Original Estimate field, because I do know that if there are no values, the field is not shown.
Thanks!
Rick