Animations overlapping with Imprudence on my grid

This issue doesn't occur with any other viewers we have tried, but Imprudence gives us the best performance results so we hope to overcome the following issue so we can use it as our grid's main viewer.

What is occurring is that whenever an avatar is using an AO, Whenever the avatar walks around, the upper body has the AO's animation, but the lower body is still using the default animation. How can we fix this?