Progress bar does not display properly in Gadgets

The "Progress" column on Gadgets such as "Issues in progress" is not rendering properly.

To test:

1. On a dashboard create an "Issues In Progress" gadget, edit it and add the "Progress" column
2. Create 2 issues eg: "YOLO-1" and "YOLO-2"
3. In YOLO-1 give the issue an Original Estimate of 1d and log work of 3h
4. In YOLO-2 give the issue an Original Estimate of 5d only
5. Go back to the board and have a look at the bars
   1. Note on YOLO-1 only the Progress bar renders and not the Original Estimate bar
   2. Note on YOLO-2 neither bar renders

In the issue navigator the progress bar does show up properly, but when on the Dashboard, Gadgets, "Issues in progress" and "assigned to me" they are not rendered correctly.

Also some differences can be seen between Chrome and FF/IE in the gadget progress bar.