Apologies if this has already been covered - i had a good look through the forum and couldn't see anything concerning this problem.
Basically I am extruding a face several times in Polygon Proxy mode to make a finger. By about the third time that I extrude, the subdivision surface suddenly starts to be indented in the middle and by the time that I have finished extruding the finger, the base and the tip are fine, they are smooth and rounded, but the shaft of the finger is smaller and looks like a rectangle polygon with sharp edges.
I'm new to Maya, but I don't remember this happening before.
You can view images of the problem at:
I have tried playing around with 'Keep Faces Together' and rebuilding the model with no success. My smooth Proxy Settings are on default. I have also reset Maya to it's default settings by deleting User Prefs in the Prefs folder.
What am I doing wrong?
Any help would be appreciated. Thanks.