Sorry I'm not the best at reporting bugs but, after getting back from the end and sleeping at my home bed, the sun appeared substantially bigger than it is usually (I also reset the icon of this world prior to this and the sun appeared larger in the icon as well). Picture 1

I then forced a crash and I have the crash report (but I don't know how to attach it privately)
After I crashed the game, I launched Minecraft again and the sun had reverted back to its normal size. However, the background of the crafting book seemed to be a random texture from the game. This then background then changed to the pig textures (???). Picture 2 & 3

Then I noticed that these pig textures also had an effect on one iron golem... (picture 4)