Auto log off bug

It seems game auto logs you off after a while. It happened today, while I was doing my training. Training went normal, but when I tried to load setup from other driver, I couldn't. Went on to do setup manually with the second driver, but I couldn't save. Button was greyed out. I pressed home button only to find out I was auto logged off. As of result, nothing was saved, I lost 4 training laps with one driver and 1 with other driver. Now my setup is ruined. Please make sure this doesn't happen in the future. I wasn't away from keyboard, I was doing my training laps, not even 10 seconds of non activity has passed. No reason to be disconnected. Thanks.

Did this happen, or has this happened, to anyone else out there?

It happened to me once, ages ago, but that was because I was away from for about 30mins!! (someone at the door!)
My own fault and my own computer settings.

But as I said, I was at computer, doing my laps !