The Weirdest Thing just Happened

I have all of these dogs in my world so I dyed the collars all different colors. So when the game updated, the colored collars looked as if they changed into sweaters. Then I turned the game on after the newest update and the dogs turned the color of their collar!!! That was really weird so I have no idea what happened.
????

Crazy Steve! about Minecraft: Pocket Edition, v1.1.4