I know it's extremely obscure and odd, and it probably doesn't affect anyone at all, but rolling 1d8192 seems to always come up as a 1 for myself and my players. Two of us are on Firefox; one is on Chrome. Comes up as a 1 no matter who rolls, if there's a description to the roll, if it's "1d8192" or just "d8192" when rolling, etc. 8191 and 8193 seem to work as they should. We rolled probably about 20+ times -- and also did one 500d8192 roll -- to just make sure we weren't unlucky. I just thought you should know.