Mom and Dad NPCs also showing double entries.

Not user error, and not intended — and there were two separate causes behind it, so thank you for the follow-up about Mom and Dad. That second screenshot is what made the bigger one visible.

The Ace of Hearts one is a v83 re-issue. Nexon shipped the same Valentine's mission twice under two quest ids (8207 and 9311), same giver, byte-identical objectives, same title. We deliberately ignore Nexon's end dates so discontinued content stays playable, which means both copies are live at once. There is already a collapse that folds a family like that into one row — but it only ran on quests being OFFERED. Once you were inside two copies at the same time, they reappeared as two IN PROGRESS rows, which is exactly your screenshot. Hand-in and in-progress rows are now collapsed the same way, and the more actionable state wins, so a quest ready to hand in never also shows as in progress. Catalogue-wide that is 102 same-giver families covering 329 quests.

Mom and Dad turned out to be a different, worse bug that your screenshot exposed. Two quest ids ship in two of our source files at once, so the catalogue genuinely held two copies of each. The menu listed both — and every lookup elsewhere answered the FIRST copy, which is a stub with no dialogue at all. So the mute version was winning while the real dialogue sat unreachable. There is now one definition per id, and the one with the dialogue is the one that survives.

On the dev branch, live at the next publish.