Had a Passage of Ferocity with 3+ wins on it or so. Was not flawed before and have not gone flawless this week. After I got my 7th win, I went to go to the Lighthouse, but it stated I needed a flawless card. I know for absolute certainty that it was flawless at least on the 5th win. I should give a disclaimer that I received a matchmaking suspension for "leaving" (as in I crashed in one match, and apparently left early in the next despite leaving when I got the match end loot). However, this did NOT flaw my card and it kept my progress. If it helps any, my platform is Microsoft Store (PC).