Playlists have an issue where it only does a completion check on the final mission of the playlist. So in your case the game checked for 15 of 15 missions after great journey which you only had 13 of 15 so it registers incomplete, you have to either play through or find someone with the great journey checkpoint and replay itxDeeKay wrote:Gamertag: xDeeKay (PC - Steam)
What was the name of the achievement?: Seconds (Halo 2: Complete a Halo 2 playlist.)
When did you complete the achievement, but have it not unlock?: 10 June 9:29pm (AWST)
How far along were you into the achievement when it reset?: 100%
Additional InfoThe playlist in question was Halo 2 Legendary Campaign.
I completed the 13/15 available levels on co-op (the first 2 missions aren't playable on co-op) and then went back to levels 1 and 2 and completed them on solo, but the achievement didn't unlock.
My co-op partner on the other hand had the achievement unlock directly after completing the 15th and final mission.
The playlist also appears as "UNPLAYED" under the in-game Halo 2 playlists leaderboard.
My Service Record stats on Halo Waypoint indicate I've completed all campaign missions on legendary.
Seems to be a bug with how playlists are marked as complete.
Achievement Progress / Unlock Reports
OP Forum Team