No video but probably me, but it wasn't my fault!
Got to a big intersection where the traffic lights were out, everyone doing the right thing, waiting their turn. I think when I'm about 2 cars from the front the lights go from completely off to flashing red, I did see that but it didn't register that it meant the lights were about to start working again. At the front I'm just watching the cars for my turn, as I take off I look up and see it's actually solid red for me, and green for cars coming from the side. Luckily the cars approaching were going pretty slowly, plus the guys behind me also didn't pick up the fact that the lights were working and also just took off. But yeah, could have gone all wrong.