Track graphics vanished during multiplayer

At 03:20cst (09:30GMT?) I was in the A Class multiplayer lobby in a race at Yas Marina. Most of the track vanished in a similar way to when a car can leave the Map at the TopGear Mojove Tag Lobby. I could see parts, I could see the braking line when I got close to it and I could see the other cars. After a minute or two the Game Crashes and I had to reboot the Xbox.
It looked to me as though I was the only victim. The other cars kept racing.

I’m not going to waste time uploading, but if someone at FM6 or Xbox Live contacts me I’ll email the short video.