NBME shelves testing on content not found on Anki Cards

As I’ve been taking more NBME shelves, I’ve noticed there’s a lot of missing content information. I’m being tested on content I have not been exposed to via Anki cards. For example, first-line treatment for vulvovaginitis in children or IgA deficiency requiring no prophylactic treatment. It would really help to have these cards as I can review them after practice shelves.