That's not what it looks like in the original footage. I don't know if you fucked it up trying to convert it into a GIF or if you deliberately edited it, but I don't see anything like that in the original frames. Here's the original footage of the shot slowed down to x0.2 speed:
View attachment 1632555
Here's a GIF version of that footage:
View attachment 1632557
Here are the three unique frames before, during, and after the flash:
View attachment 1632551
View attachment 1632552
View attachment 1632554
And here's a second GIF made from the original footage using the exact same service you used:
View attachment 1632550
None of these have the same weird overlay/ghosting shit as your GIF. It'd be
incredibly obvious in the slowed footage if it was there. Now here's one I deliberately doctored to make it look like yours:
View attachment 1632549
I'm not saying you intentionally created a bullshit GIF to fabricate drama, but I find it pretty goddamn suspicious that I had to tamper with the frames to get a result that looks anything like yours. Maybe your software is just weird, or maybe mine just doesn't pick up on whatever magical ghost frame you put in your GIF. Regardless, I'm calling fake news until I see compelling evidence otherwise.