STEPS TO REPRODUCE
1. Launch iClone 6 and apply a random character
2. Drag a WAV file to Viewport, click "Play / Pause" button on Playbar, then press "Space" to pause
3. Do not pick anything, move the mouse to anywhere of program, right-click, select "Reset Whole Scene"
4. Click "Undo" on Toolbar, press "Space" to play

ACTUAL RESULT
Program crashes

EXPECTED RESULT
The project can be played correctly and iClone 6 can work normally