When I log in to the Dashboard, the Summary bar chart shows some days have views in grey; I can't mouse-over them and see what game they're from. Is this a bug?

The total number of views per day seems fine, and I can select any other segments/games in any of the days, but when I mouse-over the grey ones, nothing happens.

Those are the "other" views: those games that had too few to be shown on their own. The library generating these graphs lumps them together automagically.

I think the grouping formula can definitely be tweaked, but yea, it merges together bars which would normally very small.

It probably doesn't play well with edge cases like my profile (lots of games with very few views each).