As I see Deb has the profit of the second screenshot. Her % of bankroll is 0.51002609%. The formula that calculates the investment profit of the user is: (% of bankroll * bankroll) - total invested. When another user makes an investment the bankroll and % of bankroll changes and the client (browser) gets notified. If this notification fails to be delivered for some reason (e.g. disconnections) then weird things could happen. My guess is that happened something similar (because I can't verify the first image in any way). Nevertheless I will keep an eye on that.
Note: Statistics that are displayed to the user are stored to an in-memory cache DB and I would like to know if something breaks, i.e. users see funny numbers (though I don't believe this was the case with Deb because a 'page refresh' solved the issue).
She told me it often comes up wrong to start with, usually corrects itself, but didn't that time:
(11:02:18 AM) deb: i took a screenshot of what i see when i first come onto that dice site in my stats
(11:02:27 AM) Chris: k
(11:02:37 AM) deb: i'm pretty sure it's not correct
(11:03:16 AM) deb: emailing it to you
(11:03:17 AM) Chris: ty
(11:04:20 AM) deb: it often corrects to be a much smaller profit
(11:04:23 AM) deb: hasn't so far this time
She's on a chromebook if that makes any difference.