Connected a new blu ray player to my receiver with a 3' high speed hdmi cable. Connected the output from Onkyo receiver to Sony 4K tv with a 25' high speed hdmi cable. In just a couple of minutes video starts to flash then freezes but the audio continues. If I unplug from receiver and plug directly to blu ray player, lose sound system, video is fine. Onkyo support says I should use a shorter hdmi run to the tv. Very hard for me to do since tv is 20' away. Is there something else causing the problem? Or something else to consider?