Originally Posted by
PonyRoar
If you transfer from iOS to Android and you have mining, your 1.8 expansion will be the blue background with your items floating awkwardly on top of nothing. If at some point, you were on Android and you received the exclusive decorations and transferred to iOS, you'll experience something like this image, where you can put the decoration on your board.
However, due to the incompatible nature of these two versions, I wouldn't advise switching around like that with a beta feature to avoid experiencing any weirdness or unpredictable breaky things with your game.