Black LCD flickers sometimes when I run in Minecraft.

Hi everyone, on Minecraft v1.12.0.9 Sometimes when I run the whole screen of my switch flickers black for like a millisecond or something. I have heard that it happens on the switch when it is docked to the TV, but I think it might've happened on handheld mode as well. Also once I was watching Youtube on the Switch and it blacked out for a millisecond or something as well! But that just might've been on the video. But if it is Minecraft, Please fix it! Thanks, - jamjar373