Paper 1.19.1 breaks Multiverse-Core (Same as Issue #7850)

[Nutmegan]

Expected behavior

Multiverse should be able to recognize and load world keys and files

Observed/Actual behavior

Fails to load worlds because of duplicate keys existing

Console Error:

[18:04:27 WARN]: java.lang.IllegalArgumentException: Cannot create a world with key minecraft:briar_briarcraft_nether and name briar_briarcraft_nether one (or both) already match a world that exists [18:04:27 WARN]: at org.bukkit.craftbukkit.v1_19_R1.CraftServer.createWorld(CraftServer.java:1155) [18:04:27 WARN]: at org.bukkit.Bukkit.createWorld(Bukkit.java:767) [18:04:27 WARN]: at org.bukkit.WorldCreator.createWorld(WorldCreator.java:474) [18:04:27 WARN]: at Multiverse-Core-4.3.2-SNAPSHOT-870.jar//com.onarandombox.MultiverseCore.utils.WorldManager.doLoad(WorldManager.java:486) [18:04:27 WARN]: at Multiverse-Core-4.3.2-SNAPSHOT-870.jar//com.onarandombox.MultiverseCore.utils.WorldManager.doLoad(WorldManager.java:467) [18:04:27 WARN]: at Multiverse-Core-4.3.2-SNAPSHOT-870.jar//com.onarandombox.MultiverseCore.utils.WorldManager.doLoad(WorldManager.java:442) [18:04:27 WARN]: at Multiverse-Core-4.3.2-SNAPSHOT-870.jar//com.onarandombox.MultiverseCore.utils.WorldManager.loadWorlds(WorldManager.java:770) [18:04:27 WARN]: at Multiverse-Core-4.3.2-SNAPSHOT-870.jar//com.onarandombox.MultiverseCore.MultiverseCore.onEnable(MultiverseCore.java:313) [18:04:27 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) [18:04:27 WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) [18:04:27 WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:542) [18:04:27 WARN]: at org.bukkit.craftbukkit.v1_19_R1.CraftServer.enablePlugin(CraftServer.java:563) [18:04:27 WARN]: at org.bukkit.craftbukkit.v1_19_R1.CraftServer.enablePlugins(CraftServer.java:477) [18:04:27 WARN]: at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:636) [18:04:27 WARN]: at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:422) [18:04:27 WARN]: at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:306) [18:04:27 WARN]: at net.minecraft.server.MinecraftServer.v(MinecraftServer.java:1124) [18:04:27 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:305) [18:04:27 WARN]: at java.base/java.lang.Thread.run(Thread.java:833)

Steps/models to reproduce

Add Multiverse to a server with existing root world containing a datapack and preloaded linked dimensions to the root.

Plugin and Datapack List

Paper 1.19.1#109 Multiverse-Core-4.3.2-SNAPSHOT-87 briarcraft.zip 0

Paper version

[18:27:50 INFO]: Checking version, please wait... [18:27:51 INFO]: This server is running Paper version git-Paper-109 (MC: 1.19.1) (Implementing API version 1.19.1-R0.1-SNAPSHOT) (Git: 69950d5) You are running the latest version Previous version: git-Paper-94 (MC: 1.19.1)

Other

The issue and error seem to exactly match a 1.18.2 issue that was patched and has possibly resurfaced.

See Issues: #7850 and #7851

[lynxplay]

Indeed replicable, just generally quite a pain to deal with without breaking other stuff from my first looks into it. Might not be as fast of a solution as the other issues, so you may have to be patient here.

[Nutmegan]

I can understand, if it's anything like trying to relearn the constant datapack changes. I have ways to get around Multiverse for now.

[CKY-]

Having the same issues as this. can post a log but it's the same. so this is not localized to Nutmegan's setup.

[RillSoji]

If you'd like my log I can send it too but it's pretty identical.