Bukkit

Multiinv version: 3.3.10

TwoTuxLib version: 1.12-b8

config.yml:

useSQL: false
splitHealth: true
splitHunger: true
controlGamemode: true
separateGamemodeInventories: true
creativeGroups:
- creative
sql:
  host: localhost
  port: '3306'
  username: username
  password: password
  database: database
  prefix: multiinv_
SaveInventoryOnQuit: false

groups.yml:

sv1:
    - sv1
    - sv1_nether
    - sv1_the_end

When the inventory of a player contains named items (e.g. a sword named on an anvil), their inventory will fail to switch between gamemodes and the following error will be posted to the console:

[21:48:19 ERROR]: Could not pass event PlayerGameModeChangeEvent to MultiInv v3.3.10
org.bukkit.event.EventException: null
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.12.2.jar:git-Spigot-549c1fa-2ee49b4]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.12.2.jar:git-Spigot-549c1fa-2ee49b4]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot-1.12.2.jar:git-Spigot-549c1fa-2ee49b4]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [spigot-1.12.2.jar:git-Spigot-549c1fa-2ee49b4]
    at net.minecraft.server.v1_12_R1.EntityPlayer.a(EntityPlayer.java:1145) [spigot-1.12.2.jar:git-Spigot-549c1fa-2ee49b4]
    at net.minecraft.server.v1_12_R1.CommandGamemode.execute(CommandGamemode.java:30) [spigot-1.12.2.jar:git-Spigot-549c1fa-2ee49b4]
    at org.bukkit.craftbukkit.v1_12_R1.command.VanillaCommandWrapper.dispatchVanillaCommand(VanillaCommandWrapper.java:109) [spigot-1.12.2.jar:git-Spigot-549c1fa-2ee49b4]

Furthermore, switching between worlds with a named item will result in the named item being erased.

Steps to reproduce

1. Name an item on an anvil.

2. Switch gamemodes or worlds with the item in your inventory.

Thanks.