I've been playing real Settlers for years and it is clear that unlike real Settlers, the dice rolling on this app is not random, but extremely reactive to the board- I.e. after a 7 is rolled it is almost always followed by the number that is blocked, when a player has 8+ cards a 7 is almost always rolled and there are near impossible streaks of unlikely numbers. Something is very fishy with the algorithm, it may try to weed out certain players for some reason.