Observed in all 3 nightly qa instances.
When you initially view the statistics for a published assessment, the dropdown "Last/All Submissions" menu is set to All, but what's actually displayed is only the stats for the last submission by each user.
Then I switch the menu to say "Last", and the page reloads. Still shows the last submission. Weirdly, the Templates link in the navbar has now disappeared.
Then I switch the menu back to "All", and the page reloads again. Now it does show all submissions. (The Templates link is still missing.)
If I go to another page, like total scores, and then return to statistics, it returns to the initial view above.