The disappearing hip happens sometimes when you use a character (or characters) with full morphs (body and/or head)in a scene with other characters. It happens often when you use more than one (different) character that has full body morphs in a scene. Sometimes even a prop will disappear, if it was selected at the time you load a new character. It seems to be related to which figure (and body part or prop)is selected at the time a new figure is added to a scene. Why does it happens? Damned if I know. It seems to be one of the many "cross talk" problems with Poser. I've found no reliable fix for it. EMC Fixer doesn't always prevent the problem, but it's worth a try. : ) Mostly all you can do is delete that character or prop, and use something else. Sometimes you will not see the problem in the window, save to .pz3, and when you reopen the file you're sometimes totally screwed. It is not unusual. It's just part of the game.