I'm playing the android version on a Galaxy Note II. I should redownload ? will it keep my saved games?
First try closing the game, powering down your device, then restarting. You might get lucky and the glitch will correct itself.
Otherwise, yes, you will have to remove then redownload the game.
But, unfortunately,
you will loose your saved games.
CORRECTION: the Android version has something called "Cloud Save".
Quoting from
here: "you can use the 'Lost Save' functionality within the game to partially recover your position (there are 6 pre-saved positions from various parts of the game)."
Try that if you have to re-install.