Just passing this on as a FYI to Tablo or anyone else interested.
I have two Tablos and I’m running them via Fire TV sticks. The Tablo preview app started to behave strangely in the last few days. It starts fine but when I go to play a recorded video, the picture freezes but the audio continues. After a few seconds it catches up, that is to say the video starts and appears to be in sync with the audio. If I then advance the show, it does exactly the same thing. This happens on both my Tablos and both my Fire TV sticks. I’ve restarted them to no avail.
If I switch to the standard Tablo app, everything works normally.