I wanted to use the body of Assassin_05 for something else, so I pulled off her clothing and found that there is no visible body between her hips and her knees.  I know I can remove parts of a body by masking things out, but there are not any masks in her maps.  This has happened with a couple other characters as well.  One example is when I turned a dwarf into a giant and the boots cut off parts of the leg.   
So how is this body masked out without a mask, and is there any way to stop it from doing so?
Thanks!

The mesh isn`t missing. it`s just hidden.
Deselect Hide inner mesh and give it a second or two to recalculate.

Geoff.

Edit: This is in IC7.
In CC2 you can use "unhide" button when in the mesh edit mode.

Wonderful!
Thank you so much!

There is a change to the way to do this in Character Creator 3.  Select the Character, Modify, Edit Mesh, Face, Visible - Show All Faces