Sculk blocks can spread outside the world border
The bug
Sculk can spread outside of the world border. This can occur when an entity dies nearby a sculk catalyst, spreading sculk blocks nearby. When this is done by the world border, some of these sculk blocks can generate past the border.
How to reproduce
- Run the command:
/tp @s 29999980 -60 0
- Place a sculk catalyst right next to the border
- Spawn a cow, and kill it
Some sculk blocks may spread past the world border
Expected results
The sculk blocks would not spread past the world border; instead, they would stop spreading before crossing the border.
Created Issue:
Sculk blocks can spread outside the world border
The bug
Sculk can spread outside of the world border. This can occur when an entity dies nearby a sculk catalyst, spreading sculk blocks nearby. When this is done by the world border, some of these sculk blocks can generate past the border.
How to reproduce
- Run the command:
/tp @s 29999980 -60 0- Place a sculk catalyst right next to the border
- Spawn a cow, and kill it
Some sculk blocks may spread past the world border
Expected results
The sculk blocks would not spread past the world border; instead, they would stop spreading before crossing the border.
Added Attachments:
Added Affects Versions: 22w12a
Added Affects Versions: 22w13a
Added Assignee:
[Mojang] Gnembon
Removed Fixed Versions: 22w17a


Relates to
MC-249204Since this ticket was recently resolved as "Works As Intended", similar reports such as MC-227289, MC-227286, and MC-209195 may also be working as intended.