Crashes on resume playback

Hi, I’m running my plex media server on my nvidia Shield, within attached external HD for storage. When I play a video from my library, if I pause it or stop play and and then try to resume from where it last played it crashes. This happend when playback is direct from the server or via a remote connection.its been happening continuously for about a year now. If I ask it to play from the start again it works fine.