I'm not quite sure if this is a Bug or if I'm just misinterpreting the statistics.
The visitor count graph of July 6 tells me I had about 264 Visitors. While sum of all visitors per country shows me 26 visitors for this day.. Where is the difference coming from?
Oh and.. before I forget: The number of visitors per country seems to be the correct one..
It's not a bug. There's a difference between visits and unique visitors. You'll see the correct statistics by clicking on visitors > overview > unique visitors.