Glitched top textures of blocks in menu when not in fullscreen

I was just playing Minecraft as normal when I noticed that something was off with the 3D models of blocks inside the inventory GUI. The top texture of the model's look glitched, as if they were smeared on. This is especially noticeable with the leave textures. It looks like its just black at the top. You can also see it with other blocks such as bedrock.