1.18 | Error when generating dimensions with a structure dimlet for structure minecraft:monument

[loldev69]

Issue description:
Created random dimension that happened to have STRUCTURE: minecraft:monument.
Once built in the dimension builder, errors appeared in console and the dimension did not generate the structure.
Errors look like this: [Server thread/ERROR] [minecraft/PrimaryLevelData]: WorldGenSettings: Element Reference{ResourceKey[minecraft:worldgen/configured_structure_feature / minecraft:monument]=net.minecraft.world.level.levelgen.feature.ConfiguredStructureFeature@13c8453e} is not valid in current registry set
Reproduced by creating test dimensions with the same dimlet.
Also tested for structure minecraft:village, that one did not cause errors and did generate (after some attempts, at least, not all worlds were suitable for village generation).

Steps to reproduce:

1. give yourself a structure dimlet for minecraft:monument ( /give @s rftoolsdim:structure_dimlet{name:"minecraft:monument"})
2. create a dimension with it
3. build it
4. errors should start popping up

Versions:

• Minecraft: 1.18.2
• Forge: 40.2.14
• McJtyLib: 1.18-6.0.20
• RFTools Base: 1.18-3.0.12
• RFTools Dimensions: 1.18-8.0.10

[loldev69]

Might be related to #456, I couldn't reproduce that one however.