У вашего броузера проблема в совместимости с HTML5
I demonstrate how to import Morph Targets in a skeletal mesh that contains LOD.
How to apply the Morph Targets to the different Levels Of Detail.
All Python Scripts can be found here:
https://drive.google.com/open?id=1gODShjYCVw55e9pKp4HDKORZTROQtB-Z