Segmentation Pie Chart Incorrect?

So I segmented my data by job title, the segmentation tool automatically creates a default list with all the contacts that don’t match the job titles I wish to target.
 
I then went through the default list which was initially 6,000 contacts and dropped them all in the correct segmentation list under job title, leaving me with 191 contacts left in the default list.
 
But my segmentation pie chart under job title shows 11,000 contacts in the default list?
 
Anyone know why this is?