I experience the same issue with playback. Based on my testing, there is nothing wrong with the recording coming from the HD-PVR (same setup for more than a year and no problems until 0.26). I can even play the file with a different player - VLC. It seems like there are some serious bugs with streaming from the backend in 0.26.<div>
<br></div><div>In fact, just yesterday, in addition to the video stream corruption you pointed out, I noticed that playback will sometimes simply quit and return to the "Recordings" screen with the most recent version of 0.26-fixes (v0.26.0-55-g09ac5b2).</div>
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