OK, thanks again for the extended info, and taking the time to tell us about the problem.
I have managed to reproduce it now, you are correct, I can only do it by holding down a finger on the pause button, and then pressing home at the same time, which causes the touch to get stuck.
I will work on a fix for the next update to the game. In the meantime there is a workaround you can do, so you don’t have to re-install :
– close the game and then double tap the home button to bring up the list of running apps.
– hold down the space station icon in the list so that a little red ‘-‘ button appears.
– press the ‘-‘ button and it will shut down the game.
– relaunch the game
You won’t lose any save data doing this, you will be able to resume the game right from where you left off, but the touches will be reset. 