Overwrite playlist when selecting a new video

scripts/cast

@@ -54,7 +54,6 @@ class Cast(wx.Frame):
                                                  args=(),
                                                  kwargs={})
         self.m_vlc = Instance()
-        self.m_vlc_medialist = self.m_vlc.media_list_new()
         self.m_vlc_listplayer = self.m_vlc.media_list_player_new()
         self.m_chromecast_thr.start()
         self.m_sizer: wx.Sizer = wx.BoxSizer(wx.VERTICAL)
@@ -347,8 +346,10 @@ class Cast(wx.Frame):
         :param uri str: the link to the video stream
         """
         media = self.m_vlc.media_new(uri)
-        self.m_vlc_medialist.add_media(media)
-        self.m_vlc_listplayer.set_media_list(self.m_vlc_medialist)
+        medialist = self.m_vlc.media_list_new()
+
+        medialist.add_media(media)
+        self.m_vlc_listplayer.set_media_list(medialist)
 
         self.m_sizer.Clear(delete_windows=True)
         self.m_sizer = wx.BoxSizer(wx.VERTICAL)