I have a 4K Fire Stick that frequently gives me the "Playback Failed" message when I start watching a recording or live stream. Fortunately, it usually works OK if I just click the Back button and try again. I have the Software Decoder selected. Note that I switched over from the Hardware Decoder because, about once a week, the hardware decoder would crap out and I would have to reboot the Fire Stick to recover.
I looked through the server logs and don't see any messages that indicate a problem at the server end.
Does anyone else experience this or is it just me? Do I have a bad stick?
Next time it happens I'll submit diagnostics.