Hello. I have found your game's typo while playing snapshot: 20w45a.
I have found this bug in inventory items, which is "Weathered Copper Block".
And the point of my issue is that the last alphabet is spelled wrong I think.
I'll add my own screenshot for your understandings.
I'll be pleased if you see this report.
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Hello! This looks to be a duplicate of MC-203555.
It was quite weird and funny, as well.