I don’t know whether it’s an issue with my phone or game itself, but sometimes when I send the game to background and bring it back to foreground, the game is shifted down. Compare the following screenshots:
The left one is shifted down, the right one is fine.
What is strange, when the image is moved down tapping screen works like I was tapping position that should be displayed with normal image. Like tap recognition was made using coordinates but coordinates doesn’t match currently displayed elements, see here: