I had the product working well with my Nintendo Switch for a while. Upscaled the signal to 1440 p on my predator 1440p monitor. No problems except for minor stuttering in myvgames once in a while. Now after 4 months the mclassic no longer upscales and instead I only get 720p on my monitor. Not only that but the sound no longer passes through. I know it is not the cable, all I have to do is disconnect my mclassic and plug the hdmi back directly into the switch and it's back to 1080p and sound works agian. Also tried on my 4k tv, no difference works without mclassic and not with.