Hello, I was goofing around in Minecraft amplified I have no clue if this affects other world types but I know it does here. Basically, if clouds are rendered in your FOV and you go to settings and turn clouds off the end result is this funny little bug that leaves the clouds rendered in. I am going to leave a picture that represents it as much as I can. I am going to continue to look into finding more bugs. Hope this helps out!

Edit: If you exit a world and load into a different one, the clouds are still rendered in this way.