I have added 3 clips on timeline and if i change rotation of second (middle) clip in Motion Direction Control window Iclone crash.

Crash reproduction workflow:
1. Create new project in Iclone
2. Add Base/Neutral_F actor to scene
3. Add animation (2.Human Female/Idle/Female Idle 1)
4. Duplicate added animation twice in a row (so you have acctualy 3 same clips - example of clip arrangement in attachment)
5. Select middle clip
6. Open Motion Direction control window
7. Change Z-axis to 0 value
8. Iclone crash :(