Can no longer see HDHomeRun via Plex without SHAKA error

I've been using the HDHomeRun plugin for 2 years reliably. Since updating Plex over the last few months, I can no longer view any live tv channels without getting this error:

Playback Error
An error occurred trying to play "Accidents caught on Camera with HD Mirror Cam!".
shaka1001 (Network)

Anyone else run into this? Tried using the built-in DVR/LiveTV option but it's the same error either way.

Thanks,
Eric