Thank you for your feedback.
We have carefully examined your case and it seems that after last Cordova update our sample is not working properly and the underlying operating systems resources are not released.
So make sure that media.release() is called every time media playing finishes.
More information here: link
Sorry for caused inconvenience, we will update our media sample as soon as possible.
Please do not hesitate to contact us if you have any other issues.
the Telerik team
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