Graphics bug on Basic Xbox One?

[Its No Use]

I was playing the Forza 7 demo the other day and drove the Nissan racecar in the rain at Nürburgring. About halfway through the race when the rain was clearing up, there was a flickering black box at the left side of the screen. I thought it was a problem with my TV, but I realised that this also happened to someone else when I watched their playthrough of the same stage on YouTube; they didn't seem to notice it.
I really hope this doesn't happen at all in the full game for non-Xbox One X users like me...

 

[UKMikey]

I got the flicker as well.

This is an E3 demo. I'm fairly confident the full game will be further optimised and bugs like this ironed out.