Zero area child patch

Psy

The Imp Queen
aa
Apr 9, 2008
1,706
1,491
Most likely caused by an odd lightmap scale. Make sure you haven't set a lightmap's scale to an number that isn't to the power of 2 (1, 2, 4, 8, 16, etc)
 

TotalMark

L6: Sharp Member
Feb 13, 2008
331
78
I read somewhere this can be caused by invalid faces, have you done any vertex editing?