Shady

I was playing a hand with two other people. I had pocket Qs and the flop brought up an Ace with two low cards. One guy was a very aggressive better and had been betting high pair on the flop every time, so when he didn't bet, I figured he didn't have the Ace. Another Ace shows up and he didn't bet again, so I bet the $10 minimum bet. One guy folds and the aggressive better called and a third Ace came up on the river so in my mind, my Full House is a shoe in. I bet enough to drive him out, but the guy is not responding. The time limit ends and, here's the real shady, rigged evidence, instead of me collecting the pot, the computer blinks and there is two more guys at the table and one guy is betting all in with 200 and something dollars but I'm confused about where these other guys came from. I don't want to fold because I haven't collected my pot yet, so I call and he turns over an Ace and wins with four aces! How does someone come into a hand that is already in play and he wasn't even at the table. Is that a rigged system, or what!