Bukkit

What steps will reproduce the problem?
1.  Go to a snow biome (sometimes also glitches with forests/grass, snow is most obvious).
2.  Execute a /gencircle <large radius*> /lighting:force /destroyandregeneratearea
3.  Wait a few hours.
4.  Check the map when it isn't snowing.  It's most visible on Dynmap.

* In the example, I used ~2000

What is the expected output? What do you see instead?
Rather than seeing a nice snowly landscape, I have a grid-like pattern of snow.

What version of the product are you using?
WGC 2.5 and Bukkit 1.0.1-R1

I'm having the same problem:

I've had the same issue with trees as well. Since I did most of my map with this mod, I can only assume it's a problem with destroying and regenerating the regions.

This is also happening with Bukkit 1.1 (as of Jan 30) and WGC 2.6.

Nephyrin has said that there is a line in the code 'int overlap = 2' that needs to be changed to 4.

I am seeing what I can do to test this.

I know what's happening here, and it's due to the way regenerate works

This should never happen with 'normal' non-regenerate generations, so please let me know if you see it there!

I'll be working on this plugin this weekend to make it v1.2.2 compatible, and also speed up its generation significantly. Until then, I would avoid /destroyandregeneratearea

I'm also experiencing this issue.  Thank you for looking into it!