ok, I am working on the tutorial in Maya 4.5 Savvy, creating a human head.
I make the sphere, and to cut a hole for the mouth I make a circle, project the curve onto the sphere, then trim. Then I delete by type-history.
Now, I add two isoparms to divide the sphere in half, select them, and choose detach surfaces. The problem is instead of cutting it in half, one side is fine, the other is in two parts.
Am I doing something wrong?