Strange behavior in a script during playlist navigation (previous button)

If I press Previous button in the first 5 seconds of playing back live TV the previous item begins to play as expected.
However if I press Previous after the first 5 seconds of playing back Live TV then nothing happens and error is added to a log: error while seeking.
Is there any way to switch to the previous item after the 5 seconds of playback for the items in a playlist:
self.__playlist = xbmc.PlayList(xbmc.PLAYLIST_VIDEO)
Thanks.