Thanks for those Seth. I can’t see any obvious reason, in the video, and the mask shot that you’ve provided, for that trigger. Hopefully someone else might, maybe if you’re lucky, a member of Blink staff might comment, but don’t hold your breath for that, unless you log a ticket.
Even the angle of the sun means that there should be little reflected light coming this way, and certainly no shadows, because they would be in front of the vehicle, and to it’s left, after it makes the turn, and I definitely don’t see anything shooting across the grass, at least not in an unmasked area.
There is a change in brightness, on the ground, near the tree, between it and the vehicle, at the start of the video, but it’s completely masked, so that should not have triggered a recorded event, and it does seem obvious that it was the vehicle that was the cause, but as to the reason why, sadly, I couldn’t say.