There are two types of rounding bugs. Maybe this has been discussed before. In that case I apologize but I couldn't find it.
First the winnings are often not correct [Hint: 0.005 x 1.75 = 0.00375]
[Edit: Well, the error is tiny and maybe it's more of an aesthetic thing ]

Second, low rolls (below 1?) are often rounded down as in roll #5213496. This should mean that rolling low (<1%) is slightly more likely to win than it should be.
