[Talk-us] Rendering not happening at lower zooms

[Nathan Edgars II]

On 2/20/2012 4:11 AM, Alan Mintz wrote:
> I've been doing some work here:
> http://www.openstreetmap.org/?lat=35.7216&lon=-117.3273&zoom=12&layers=M
> , which is being rendered in zooms 13 and higher, but not at 12 or
> below. Most of the water feature shown by this link was removed a few
> days ago. When should it be rendered?

Mark it dirty: 
http://wiki.openstreetmap.org/wiki/Slippy_Map#Mapnik_tile_rendering

It's been this way for years.