Double tap required

The game is totally fine until I switch the file location to external. For every touch, double touch is required. For example, I want to tap the play button and can only enter the worlds menu after double clicking. I want to open the inventory slot while playing and I have to double tap it. Basically every touch requires double tapping except the five buttons "move forward", "move backward", "move to the left", "move to the right" and "jump". This is very annoying.