Bezier freehand draw curve is very coarse with larger errors When creating a freehand drawing of a Bezier curve i get very coarse angular line with an "error" of ~10 in the "Draw Curve" menu (see image).  

When opening a new Blender window the curve draws fine (see second image): 



Any ideas how to fix this large error in the first example? Note, This occurs after import of a raster image using the BlenderGIS plugin. 

MacOSX
Blender 2.78
Looks like this is a small bug perhaps, I closed blender and restarted and it is no longer a problem.