Blue Post
Original thread hosted on Blizzard's official forums.
300 runs and no iconic mythic after patch 3.1.1
View on Blizzard forums:
https://us.forums.blizzard.com/en/d4/t/300-runs-and-no-iconic-mythic-after-patch-311/262837/54
The team is currently investigating this, and looking at mythics more broadly.