[Playerstage-users] blocks

Hi,
I'm trying to convert some of my old Stage 2.1.1 models to use Stage 
3.2.2 but I'm having trouble making the blocks render properly.
In my robot's "position" model I have two blocks, declared with the 
following code:

block(
	points 6
	point[0] [-0.5 -0.5]
	point[1] [-0.5 0.5]
	point[2] [0.25 0.5]
	point[3] [0.5 0.25]
	point[4] [0.5 -0.25]
	point[5] [0.25 -0.5]
		
	# z [height_from height_to]
	z [0 0.22]
)

block(
	points 8
	point[0] [-0.2 0.12]
	point[1] [-0.2 -0.12]
	point[2] [-0.12 -0.2555]
	point[3] [0.12 -0.2555]
	point[4] [0.2 -0.12]
	point[5] [0.2 0.12]
	point[6] [0.12 0.2555]
	point[7] [-0.12 0.2555]
	z [0 0.22]
)

My problem is that the 6 pointed block just becomes walls (bad) but the 
8 pointed block is a proper block which is filled in. I uploaded a 
picture here:
http://www-users.cs.york.ac.uk/jowen/player/fillinblock.png

and in the fancy new perspective view:
http://www-users.cs.york.ac.uk/jowen/player/fillinblockperspective.png

I don't see what the difference in the syntax is that would cause this 
to happen! Both blocks are on the same robot so I don't think it's a 
problem in the rest of my code, just the bits I've pasted here. I've 
uploaded the code that generated this simulation here if anyone wants to 
read it:
http://www-users.cs.york.ac.uk/jowen/player/bigbob.tar

I'm using Player version 3.0.0 if that's important.
Does anyone know why the first block does not get filled in like a solid 
object?
Thanks,


Jenny