[MC-222328] 4 stacks of copper blocks became 9 stacks

I had 4 stacks of copper blocks. I crafted them into ingots. Later I crafted them back into blocks and I had 9 stacks.

Linked issues

duplicates 1

MC-213630 Copper block duplication Resolved

Comments 3

bugsbugsbugs 2021-04-05T18:32:48Z

Duplicate of MC-213630, which is invalid. The recipe was changed. First you needed 9 ingots to craft one block, but in 20w46a was changed to only require 4 ingots. That is how you got more blocks. This is not a bug. See the comment by @unknown on that ticket.

user-c84db 2021-04-05T18:40:28Z

How did you open 20w45a world in 21w13a?

Splash 2021-04-05T19:01:49Z

I had this when we were still able to open worlds from old snapshots, but I reported it 2 months later. Sadly bug tracker doesn't let me add 21w05a.