Video automatically stop after 8 to 10 minutes in WPF

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WPF

Hello,

I am using Media element in wpf and playing a video in repeat behaviour but after some time my video doesn't play please suggest what i need to do so that my video never stop or hangs.
Code which i use is given below

Front end:-----

<mediaelement name="myMediaElement" ismuted="True" stretch="Fill" width="768" height="500" unloadedbehavior="Stop" loadedbehavior="Manual">
                   <mediaelement.triggers>
                       <eventtrigger routedevent="MediaElement.Loaded">
                           <eventtrigger.actions>
                               <beginstoryboard>
                                   <storyboard slipbehavior="Slip">

                                       <!-- The MediaTimeline has a RepeatBehavior="Forever" which makes the media play
                over and over indefinitely.-->
                                       <mediatimeline name="videomediaTimeline" storyboard.targetname="myMediaElement">
                                               RepeatBehavior="Forever" />

                                   </mediatimeline></storyboard>
                               </beginstoryboard>
                           </eventtrigger.actions>
                       </eventtrigger>
                   </mediaelement.triggers>
               </mediaelement>

Code Behind:-

public MainGameWindow()
        {
            
                InitializeComponent();             
                myMediaElement.Loaded += new RoutedEventHandler(myMediaElement_Loaded);
              
                   }




      private void playVideoWithRepet()
        {
            try
            {
                string filePath = string.Empty;
                string _pathVedioRotater = _dynamicFilePath + "TopVideoRotate.xml";
                var doc = new XmlDocument();
                doc.Load(_pathVedioRotater);
                XmlNodeList setting = doc.GetElementsByTagName("Video");
                foreach (XmlNode item in setting)
                {
                    filePath = item.ChildNodes[2].InnerText.ToString();
                }

                string videopath = _dynamicFilePath + "TopContanerVideo/" + filePath;

                videomediaTimeline.Source = new Uri(videopath, UriKind.RelativeOrAbsolute);
               
                
                doc = null;
                _pathVedioRotater = null;
                filePath = string.Empty;
                videopath = null;
                setting = null;
            }

            catch (Exception ex)
            {

                throw ex;
            }

        }