Looks like I got the same person as you
@Quilombo.. ("absolute Karen" is the best description I can find..).
She wanted my wife's physical DNI which I had, gave me a cold hard stare when she discovered I didn't have a translation of my passport, and then looked at the digital translations of my background check as if I'd just taken a dump on her desk...
She then informed me that I'll have a new precaria tomorrow and I "should manage with that", when I raised the question of permanent residency (the goal of the cita..) I got told "when everything is closed in the system you'll receive a DNI".
Que pais...
I don't know if she's always at the same box, but for future trips to migraciones do all you can to avoid box 5 with a woman with very short black hair..