The clocks?

Ok, so ever since the recent update, the clocks on my minecraft turn into a pixel-y mess. Its just a big cluster of colored pixels that change every now and then. Its the same thing when I put them on item frames. They look just fine when theyre in your inventory, but when youre holding them, or have them up, they are a cluster of rainbow pixels! It doesnt make sense, and none of my friends have the same thing so.....?‍♀️???

Canadian mounted about Minecraft: Pocket Edition, v1.1.3