Anybody else get this occasionally.
So watch Sky in UHD - can be a recording or from the OnDemand section.
After a few seconds of playing the recording press 'pause'.
I'm then finding, but not 100%, the video playback starts blanking out.
Suggestions already tried: Reboot the set-top-box, switch off all kit at the mains, change the HDMI cable.
As said - I only see this on non-live stuff after a pause.
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1.2Gb/55Mb in Oxford (area 31) using SH5