I see this bug is very old (and resolved), but for what it's worth, I'm encountering it currently and hope that there is some sort of work around and perhaps this bug can be reopened.
It was originally working, showing a Horse Speed value of something (I was playing around with values). I then created a new objective and wanted to display that as well, and when I did the side bar disappeared. I thought perhaps removing the first objective and re-displaying the sidebar might bring it back up - it did not. I tried removing the second objective and re-adding and re-displaying the sidebar, this did nothing as well.
I see this bug is very old (and resolved), but for what it's worth, I'm encountering it currently and hope that there is some sort of work around and perhaps this bug can be reopened.
It was originally working, showing a Horse Speed value of something (I was playing around with values). I then created a new objective and wanted to display that as well, and when I did the side bar disappeared. I thought perhaps removing the first objective and re-displaying the sidebar might bring it back up - it did not. I tried removing the second objective and re-adding and re-displaying the sidebar, this did nothing as well.