The summary shows the warning printed in console while the game loads. When actually playing the game, the sound doesn't play.
How to reproduce:
Boot up the game and look through the console/game log, and notice the game warning saying that
minecraft:block.grindstone.use
is missingLoad a world and repair an item using a grindstone
This is especially problematic because there is a subtitle for this sound that is thus never displayed due to this sound not playing: "Grindstone used".
Intended. Sounds will be added later.