STEPS TO REPRODUCE
1. Launch CrazyTalk 8
2. Apply a random embed actor (e.g. Alberto)
3. Navigate to Content Manager > Animation > Practice Audio, apply a random mp3 file (e.g. Avoidance, 563 frames)
4. Go to Talk Mode
5. Open Timeline, set Current Frame to 100, then apply TTS (Hello) to Talk Mode
6. Click to Play

ACTUAL RESULT
The motion clip in Frame 178 to 563 will be changed to Default3D(Idle), but user can still hear the voice of Avoidance

EXPECTED RESULT
No voice will be heard if change the motion clip to Default3D(Idle)