We ran 3 dungeons earlier with the same team in that order:
Plaguefall 16+ (untimed)
Plaguefall 15+ (timed)
Halls of Atonement 16+ (timed)
While 1. Plaguefall 16+ and 3. Halls of Atonement 16+ are visible on the Armory, the middle one 2. Plaguefall 15+ - doesn’t appear anywhere on the Armory.
It is visible in-game in the Mythic Keystones tab though.
Having the same issue. ingame have a score of 2020 outside the score is 1664 due to missing runs in the armory. Can only hope the armory update at some point. Bit silly really as the armory has updated my score but not some of the dungeon levels.