When you import various animations to your iavatars, some of them get the pelvis movement completely wrong. See example in curve editor of the Z position (IK mode). Correct import would look like a smooth wave, but for some characters (I don’t know why) iclone decides to import a completely different movement. This problem seems to mainly be about all the pelvis channels. I’ve checked across 5 different characters: some work, others get weird (and different each times) alterations of the pelvis movement.
PS: I use only custom made iavatars, from Accurig.