shulkerboxes.sc not working in 1.21

[AMilli2]

I tried using the vacuum function in version 1.21, but the items keep going to the player's inventory.

[manchesterjm]

Yep, seeing the same thing in 1.21

[manchesterjm]

any easy fix here? what line of code needs to be updated?

[samule-i]

any easy fix here? what line of code needs to be updated?

I don't think it's an "easy" fix.

1.21 has changed a lot of how nbt data works
For example, when checking the shulkerbox's name has 'vacuum' it reads shulker_tag:'display.Name on line 137

This doesn't return anything anymore, I've found that you can get the same data using shulker_tag:'components':'minecraft:custom_name', but there might be a better way to access it and I'm just not familiar enough.

This happens repeatedly through the code, any time that shulkerboxes accessed nbt data, it's almost guaranteed to have been moved in the changes.

As for which line specifically? So far, any line that uses shulker_tag probably needs looking at, as least.