Using the 2015 Q2 version, there will be no error when the playlist is invalid. The RadMediaPlayer playlist will remain empty, and you can handle the PreRender event if you want to do further configurations
RadMediaPlayer requires multiple taps to play videos in Safari in IPad. The problem is not reproducible in other mobile browser. Steps to reproduce: 1. Open http://demos.telerik.com/aspnet-ajax/media-player/examples/overview/defaultcs.aspx in Safari in iPAD 2. Tap to play the video Result: The video will be not played on the first tap.