webplayer 3.3 problem

Everyt$$anonymous$$ng was ok with our character both with standalone version and web version. Now with the 3.3 web player version he walks and runs in place. The standalone version is still ok. If we uninstall 3.3 web player and reinstall the old 3.1 everyt$$anonymous$$ng is fine again. I hope someone can help us. My students have to show an internet demo for their final test. Thanks