I played a Sit n Go game, won it :) but had less money afterwards :(

This is what happened:
I started today with 0 (duh)
pressed refill, and sit in on a 3 player $500 Sit n Go table.
While waiting for other players, I played at another (ring) table. I had luck, and won a bit.
The start game notification was working fine, so I left the ring game when the Sit n Go started.
At that moment I had between $2600 and $2800.
After winning the Sit n Go game, I had $2150.
It is possible that I did not leave the other table properly, and lost a lot of blinds. But my biggest win is not shown on the statistics:

Month October
Rank 59th
Chips $2,150
Refills 0
Biggest Win $0
Biggest Loss -$50
Winnings -0
Losses -$50

So I think the state when you sit in on a Sit n Go table is remembered, and everything what happened in the mean time on other tables is discarded.