To me it looks like the flash hit something that was hanging from the ceiling (being as there looks like there are a lot of cords that are hanging there). It is from there that there was light reflection that had caused the cause haze - as you can see it almost looks exactly like the white streak. The orb looking object could also be part of the light reflection.
There are still issues with the inboxes. I'll get on it tomorrow and see if I can't figure out what the problem is. I apologize for any unusual things that may occur during this time. Maybe we really are haunted!?