Versions

WorldEdit version: 7.2.0-SNAPSHOT-dist (forge)
Platform version: Minecraft 1.16.1, Forge 1.16.1-forge-32.0.25

Describe the bug
when i try to use the brushes in the new custom Dimension this occures.
java.lang.ClassCastException: net.minecraft.world.storage.DerivedWorldInfo cannot be cast to net.minecraft.world.storage.ServerWorldInfo

To Reproduce

1. Create a world with a custom dimension in vanilla minecraft 1.16.1 (Forge has problems with reading the extra information
   while creating new world with the datapack options)
2. load the world in Forge version 32.0.25.
3. teleport to new custom dimension.
4. Use the brush functions in the newly added custom dimensions of minecraft 1.16.1.

Expected behavior

normal use of brushes in all dimensions.

Additional context

Stacktrace: bug.txt

Please provide the entire stacktrace

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