I have a Satechi adapter I used for HDMI to my Sony 4k OLED tv from my MBP until the HDMI port died. I had 2 genuine Apple lightning to HDMI adapters I used to connect an iPad to the same tv, but they have both died. Does anyone know why HDMI adapters are so unreliable? I have tried making connections before turning on equipment but it doesn’t help. Until I find a solution I will switch to the cheapest adapters I can find.