If you are using Chrome 55 and some of the elements are not working (Clipping, Webcam, Video presentation, Kaltura Video Player)
Be certain that you have Flash installed.
Go to https://get.adobe.com/flashplayer/
If your browser indicates “Your Google Chrome browser already includes Adobe® Flash® Player built-in” - you have it!
If not, follow the instructions to install Flash.
Make sure the Flash plugin is "enabled".
Point the Chrome browser to “chrome://plugins/” and Enable the Adobe Flash Player plugin.