Basically, I was getting on the new snapshot to test out some cool command block stuff. As I connected, I noticed that a piece of redstone looked distorted (one piece that was connected to another, that was apparently invisible.)

Want to check it out for yourself?

Have a 3x3 area, and place redstone on the edges, some will be distorted, and some will disappear.

I will be including screenshots to show you what I mean.