I have a live mastermind and I have created videos that are uploaded nativley into the mastermind platform.

They are working, however when I try to access them from mobile platforms (Android and iOS) the video starts playing but only with audio feed; the video cover image remains in place for the duration of the video playing.

I have tried with iPhone, Android phone and two seperate iPads (using safari and Chrome). I this a known issue? What is the work around; my thoughts are that most people will access via some form of mobile device.

Does uploading to youtube or vimeo resolve the issue?

(It works on both MAC OS with Chrome, Safari and Firefox); it also works on Ubuntu with a Firefox browser.

I should add that this is user based testing, all development has been carried out on a laptop...