The Bug:
minecraft.used:minecraft.powder_snow_bucket doesn't increase when filling a cauldron with a powder snow bucket.
Steps to Reproduce:
Create a scoreboard objective for tracking the use of a powder snow bucket and set it to display on the sidebar.
/scoreboard objectives add UseSnowBucket minecraft.used:minecraft.powder_snow_bucket
/scoreboard objectives setdisplay sidebar UseSnowBucketFill a cauldron with some powder snow using a powder snow bucket.
→ ❌ Notice how the scoreboard doesn't increase.
Can confirm