Server thread/ERROR "Silently" catching entity tracking error.
26.07 12:11:10 [Server] INFO net.minecraft.util.ReportedException: Adding entity to track
26.07 12:11:10 [Server] INFO at net.minecraft.entity.EntityTracker.func_72785_a(EntityTracker.java:225) [la.class:?]
26.07 12:11:10 [Server] INFO at net.minecraftforge.fml.common.registry.EntityRegistry.tryTrackingEntity(EntityRegistry.java:474) [EntityRegistry.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.entity.EntityTracker.func_72786_a(EntityTracker.java:59) [la.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.world.WorldManager.func_72703_a(SourceFile:30) [lb.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.world.World.func_72923_a(World.java:1135) [adm.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.world.WorldServer.func_72923_a(WorldServer.java:945) [le.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.world.World.onSpongeEntityAdded(World.java:613) [adm.class:?]
26.07 12:11:10 [Server] INFO at org.spongepowered.common.event.CauseTracker.processSpawnEntity(CauseTracker.java:1089) [CauseTracker.class:1.8.9-1890-4.2.0-BETA-1595]
26.07 12:11:10 [Server] INFO at net.minecraft.world.World.spawnEntity(World.java:1294) [adm.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.world.World.handler$onSpawnEntityInWorld$0(World.java:1283) [adm.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.world.World.func_72838_d(World.java) [adm.class:?]
26.07 12:11:10 [Server] INFO at com.pixelmonmod.pixelmon.entities.pixelmon.EntityPixelmon.releaseFromPokeball(EntityPixelmon.java:167) [EntityPixelmon.class:?]
26.07 12:11:10 [Server] INFO at com.pixelmonmod.pixelmon.battles.controller.BattleControllerBase.update(BattleControllerBase.java:280) [BattleControllerBase.class:?]
26.07 12:11:10 [Server] INFO at com.pixelmonmod.pixelmon.battles.BattleRegistry.updateBattles(BattleRegistry.java:144) [BattleRegistry.class:?]
26.07 12:11:10 [Server] INFO at com.pixelmonmod.pixelmon.battles.BattleTickHandler.tickStart(BattleTickHandler.java:13) [BattleTickHandler.class:?]
26.07 12:11:10 [Server] INFO at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_37_BattleTickHandler_tickStart_WorldTickEvent.invoke(.dynamic) [?:?]
26.07 12:11:10 [Server] INFO at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:49) [ASMEventHandler.class:?]
26.07 12:11:10 [Server] INFO at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:110) [EventBus.class:?]
26.07 12:11:10 [Server] INFO at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:81) [EventBus.class:?]
26.07 12:11:10 [Server] INFO at net.minecraftforge.fml.common.FMLCommonHandler.onPreWorldTick(FMLCommonHandler.java:274) [FMLCommonHandler.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:686) [MinecraftServer.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:344) [ko.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605) [MinecraftServer.class:?]
26.07 12:11:10 [Server] INFO at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481) [MinecraftServer.class:?]
26.07 12:11:10 [Server] INFO at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
26.07 12:11:10 [Server] INFO Caused by: java.lang.IllegalStateException: Entity is already tracked!