During the last month or so when rolling D10's and D100's our group keeps encountering repeating (as in getting the same roll value multiple times) numbers as well and Max and Minimum values following each other in sequence (In other words getting a 1 followed a by a roll of 10 or 100 on 1d10/1d100 respectively.) Because 1 and 100's on percentile system can either be critical successes or Critical failures their regular occurrence makes roll20 occasionally frustrating (as we have to keep re-rolling until it returns to normal) or almost unusable as it will sometimes repeat up the same roll up to six times greatly slowing down game play and especially needlessly inflating combat encounter times.
This has happened in multiple campaigns, my own and two others I participate in, and though I love Roll20 its beginning to frustrate the other players greatly. The following composite screen shot is from two campaigns the first two from one, the third example from another. I would have added more but I couldn't get the chat archives to load so I just loaded the individual games and scrolled up for the most recent rolls.
Is this something on our end that might be tweaking the RNG unintentionally?
Is lag a or the GM's connection a factor on the rest of the groups rolls?
My stats-
OS: Windows 7 (64-bit)
Browser: Firefox 15.0
Flash: 14.4.402
JavaScript; Enabled
Worth noting: Other members of our party are using chrome, though I don't know which version.