Yes, I know this is an April Fools' Update. Yes, I know that this issue will probably be closed. However, I also know that they do maintenance on the updates within the first week or so of them coming out in case anything really bad happens (like with the Vote Update in 2022).
There are two parts to this one:
The Soul Link mine ingredient (which is required for an advancement, by the way) crashes the game if you try and use it. It’s 100% reproducible. What’s supposed to happen with Soul Link is that if one player takes damage, everyone takes damage. Problem is, the tag for that triggers itself, causing a stack overflow and crashing the server. If you have an established world with a lot of players and someone chooses this, you basically have to delete the world.
The No Drops? mine ingredient is unobtainable. It’s unclear if this is intentional or not, but regardless of that it’s required for the The Ultimate Miner advancement, which makes it impossible to get without commands. This would be nice to fix, one way or another, but it’s not game-breaking like the first point is.
Please fix these so that this update is more playable; the Craftmine Update is a huge amount of fun to play with friends, and it would be nice to have these few problems fixed under the hood (again like the Vote Update). There’s better information for them on the Minecraft Wiki: https://minecraft.wiki/w/Mine_Ingredient#Challenges
Environment
Doesn't matter, these problems are universal
April Fools snapshots are not supported on the tracker