Problem Details:

Success rate graph isn't displaying in mania beatmaps.

Video or screenshot showing the problem:

http://puu.sh/57pDP.png

osu! version: 20131024.1 (latest)

Actually, it doesn't show up for any mode-specific maps. Should I confirm?

I'd confirm this myself. Only STD shows the graphs.

I'll let it be confirmed...

These stats are only stored for osu! mode currently. I will remove the display of the graph for other modes for now.