Odd darkness issues

[Lanu2000]

I was playing around with the darkness token light, and noticed an odd issue with the calculations.
I made a gif, but it's too big to post, so I've added a link to it here: View GIF

The 'B' token has a token light added Bright: 20 Dim: 20 Falloff: 1 Darkness: On (shown as the last frame of animation)
The cleric is human with no special vision/lights (though the same issue is apparent when trying with darkvision/torches)

The cleric starts 5 squares below the 'B' token (4 squares between them) and, when moving 1 square to the right, loses all vision except for a sliver running up and to the left (toward the darkness). This happens as the cleric circles the 'B' token.

I've attached stills of the issue as well.

[Moon Wizard]

Thanks for reporting. I actually just added tickets for these yesterday for @cpinder to look at.

Regards,
JPG