I would cover my oven rack with slices of plain bread and bake them to check for hot and cold spots. And I'd check every quadrant of the oven with one of those infrared temp guns.
I'm fascinated by the one that blew out (middle row, far left.) Interesting how that might happen. Did it rise and then fall, or did it never rise?
(And for the record, I'd still happily eat them all.)