Block Item models in an inventory look strange and plastic depending on the players y-rotation

Steps to reproduce

• Open up your F3 debug screen
• Look carefully at your y-rotation, and make sure it is BELOW 0 (for example straight up is -90), then open your creative inventory (or survival inventory, just make sure there are items there)
• Now repeat this but with your rotation ABOVE 0

Notice the difference?

I recommend look straight up/down to make results more reliable