Review on 🔌 Syncwire HDMI Cable 6.5 ft: High Speed 4K@60 Hz Gold-Plated HDMI to HDMI Cord - Supports 4K, UHD, FHD, 3D, Ethernet, Audio Return Channel for Fire TV/Apple TV/HDTV/Xbox/PS4/PS3 by Troy Coste

Thought the problem was my Elgato, returned it and I had the same problem so I switched HDMI and all is good, intermittent black screen. Sure they're probably usually fine, that was the problem isolating the issue, in my case they either work or they don't, this cable worked but the screen went intermittently black for about 2 seconds about every 3 minutes. weird but I didn't find it fast enough now I can't go back.