If you try to start playback of a recording while it is still recording but no longer in the guide (common with live sports when you set the recording to finish 60 mins after the scheduled time), it’s not possible to find and start the recording because it is no longer in the guide. As a workaround, please please please enable us to start the recording from the DVR schedule page.
Otherwise Plex is unusable for time shifting live sports.
Would be even better if Plex remembered where it was in playing back live recordings, so you don’t need to start from the beginning if you switch devices etc.