annullus filler
Luv the nick AF.
I would guess the altitude s/w worked as advertised, deployed the masks set off the emerg announcements.Having gone less than trip altitude (11,000 to maybe 13,000 ft) or there-abouts the s/w likely reset to normal and PES prob back to normal also.
Pax complaining of no oxy may expect a gushing air supply in their faces, not pulled the lanyard or indeed not had any due to nil supply from non existent cylinder or low flow due to rupture.
We'll find out soon enough.