Yes, round #63 wasn't so good. Payments on red were very low and payments on blue came to late so the fee was significant enough to eat up all profit for some players on the blue side.
I will increase bonus amount. This will hopefully prevent situations like this one from happening

Great, thanks!
Also, I think rounds should be a bit shorter in time (maybe 1 hour? Because if you 'invest' in a round, you want to be there when it ends, and not everybody can stay 4 hours behind their screen) and you should attract more users (advertise or referral program)