STEPS TO REPRODUCE
1. Launch iClone 6
2. Apply G6 Character Mason
3. Apply a random MotionPlus (e.g. Mason_Talk 2) and rotate the character
4. Go to Timeline > Collect Clip, select this motion and right-click, choose "Add MotionPlus to Library" then save it to desktop
5. Click "New Project", apply Mason and the saved MotionPlus, then play this project

ACTUAL RESULT
The character's chest distorted abnormally

EXPECTED RESULT
The character's chest can be displayed correctly