[OSM-newbies] Why doesn't Mapnik play nice?

[James Ewen]

Last month I ripped up a poorly hand laid roadway, and replaced it
with a GPS trace turned into a way. I waited for the next render
cycle, and found my nice GPS trace had been turned into a straight
line between the end points in Mapnik. I double checked things, and
made sure the way was laid down properly, and waited for another
render cycle. I then attempted to force a re-render through
informationfreeway. To date, the way is still a straight line between
the end points in Mapnik, but if you go into the Potlatch editor, the
proper way is sitting right there.

What gives?

http://www.openstreetmap.org/?lat=55.149&lon=-117.665&zoom=10&layers=B000FTF

James