Hotbar slots All Change to SAME item when trying to switch

I was playing Minecraft PE on my Asus Zenphone 2. I wanted to change from a stone block to a Glass Stone, when I did that, ALL the blocks in my bar across the bottom of my screen turned to Glass Stone! Now I can't have multiple items showing at the same time. They are ALL identical. Block launcher Pro is doing the same thing.
Edit by [MCPE Mod] Dr.Awesome4333 Items on hot bar all become the same item when selecting an item from the inventory.