There is an issue with the algorithms the dice roll. The seven roll seems to roll in a pattern when playing three players. The same player tends to roll sevens multiple times in a row and seems to dominate the seven roll. The dice also roll the same number multiple times in a row - and then stops for a while before becoming more random and less often. I have experienced this in multiple games.
@Wristbreaker6 There has been an on-going discussion about this issue for a long time. Yet admin as well as a few players insist that dice is random.
Still, a consistent number of players believe the algorithm is warped.
If it bothers you, you can set the dice modus in options (filters) or customs game.