Cards disappeared from draft pool, not a filter issue
I did a BRO premiere draft on my PC, Windows 11, then logged off and went to build a deck on my iPhone, iOS 16.1.1. When I went to build the deck, I had 39 cards plus 22 basics in my deck, for a 61 card deck and no cards in my sideboard. I moved everything to my sideboard, and only had 24 cards. I put all my cards back into my deck and without any basic lands, only had 24 cards. I pulled them all out then I set my filters to show only rares and mythics looking for a specific card, and the only rare showing in my pool was Underground River. I selected the option to reset filters but still no change. Exiting and re-entering the event showed all my cards again but when I would pull specific cards out of my deck (such as Recruitment Officer and Loran of the Third Path), they would disappear from my draft pool.