Split screen first player banner texture

If you wanna go straight to the point go after the emoji line. So like a year ago I went to my friend house to play Minecraft on her ps4 on split screen and played a one block sky grid world. 

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So in this world I got a banner, placed it and just look at the image. 

And not long ago, we played again on that world... AND IT WAS STILL HERE. I tried modifying the banner... AND IT GOT MORE CURSED. So please fix this mojang. Also as you can see... ON THE OTHER SCREEN IT'S COMPLETELY OK. Anyway bye.