Apologies for reporting this issue, as I know it was addressed in a previous update. However, with the latest update, it seems that the sandbags in World 3-11 and 3-12 [haven't checked the others but most likely going to have the same issue] are now crashing the game again when there's two bags left.
Also, amazing game and got to admit i enjoy the banter between the characters before and after successful victory.