Such things can happen Cas57... thing to remember... if you can't afford to quit a game because your device locks up, then submit the issue to WGT to be reimbursed, then you are likely playing in a coin room too expensive for your bankroll.
There are some out there that may attempt to do this intentionally, but a lot of times, it can just be accidental. It happens, just be glad you didn't spend credits and have it happen during a showdown that impacted the outcome.
Submit the issue to customer support they will likely reimburse you. Then give serious thought whether you can afford to play in Tokyo, it doesn't sound like you have the bankroll to handle the swings you would likely see in that room.