While in a singleplayer world, I happened upon the sound known as "Block broken" appearing in the subtitles, even though nobody else was playing, and I certainly was not breaking blocks at the moment. It's not game-changing, but I figure that it shouldn't be there.
MC-164639
"Block Broken" sound is displayed in subtitles, while blocks aren't being broken
Resolved
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Affects all 1.15 snapshots too. My theory is that some other sound is playing but it's incorrectly listed as a block being broken. I'm excluding typical overworld natural block broken sounds like a sheep eating grass, villagers replanting, leaves with vines decaying, etc as these are blocks being broken.
Related, the "Minecart Rolls" seems to show in subtitles very often too, but the sound effect has not played.