Very last advancement doesn't load until I execute /reload

[Corey Frenette]

I have a tree of advancements, and the very last one doesn't load when I first join a singleplayer world. There are no errors or suspicious log entries when starting the game.

The internal server is aware of it - when I make progress towards it, it says that the server has notified the client of progress towards an unknown advancement. If I execute the /reload command, it loads the advancement properly.

I can provide the advancements in private upon request.

[Blarg Platypus]

Assuming I accidentally fixed this at some point.