WorldGuad region stops at layer 0

[Ted-18]

[15:10:25 INFO]: Name: uSkyBlock
[15:10:25 INFO]: Version: 2.11.0
[15:10:25 INFO]: Description: Ultimate SkyBlock v2.11.0-c9678be
[15:10:25 INFO]: Language: en (en)
[15:10:25 INFO]:   State: d=128, r=64, i=16, p=22, n=true, awe=false
[15:10:25 INFO]: Server: Paper git-Paper-386 (MC: 1.19.3)
[15:10:25 INFO]:   State: online=true, bungee=true
[15:10:25 INFO]: ------------------------------
[15:10:25 INFO]: Vault 1.7.3-b131 (ENABLED)
[15:10:25 INFO]: WorldEdit 7.2.13+46576cc (ENABLED)
[15:10:25 INFO]: WorldGuard 7.0.8-beta-01+cbb2ba7 (ENABLED)
[15:10:25 INFO]: Multiverse-Core 4.3.1-SNAPSHOT-b860 (ENABLED)
[15:10:25 INFO]: Multiverse-NetherPortals 4.2.1-b786 (ENABLED)
[15:10:25 INFO]: ------------------------------

Context
The latest versions of Minecraft add negative layers from 0 to -64. Cobble blocks can be put on if there is a lava and water leak but you can't break them because of the World Guard permissions.

What steps will reproduce the problem?

1. Create an island.
2. Go to Y:0
3. You are no longer in the area.

[minoneer]

Thanks for reporting! This issue was fixed a while ago: c41f1c4