We notice a lot of repeated rolls which are client based, that is the same rolls happen for specific players in chains (myself included). Usually, the same roll comes up 2-3 times, but we once had a chain a while back where the player rolled up 5 20s for crits and all were unconfirmed with a 1. Same thing for other dice, not just the 20s - like rolling the same damage 2-3 times in a row. If the user reloads the game, this never happens. The few players I have/had who are using Linux based systems never ran into the issue either (that I know of). It almost seems as if the game uses cached results here and there. It is so notable, some of my players refuse to roll on here and use another site just for the dice rolls. The connection that this might be a windows client issue just came to me this morning when my husband pointed out that the Linux players never had an issue. No idea if there is really a difference in how Linux and Windows are handled on the site, but as husband had resolved a similar case for his quiz gaming site recently I thought I'd ask. It is not a really bad issue, as we can just reload the game if the results matter (it causes more amusement than frustration) but I thought it might be good to mention it.
