Arcane Essentials crashing mid-fight

[basileus956]

I don't know what was happening, wizards were fighting and they spawned mushrooms and puddles, and boom, the game crashed.

latest.log

[epiktechno]

Im having a similar crash, instead when i had attempted to cast.

Description: Ticking player

java.lang.IllegalArgumentException: Unregistered serializer com.favouritedragon.arcaneessentials.common.entity.data.Behaviour$BehaviorSerializer@633e9aab for 7!
at net.minecraft.network.datasync.EntityDataManager.func_187214_a(EntityDataManager.java:110)
at com.favouritedragon.arcaneessentials.common.entity.EntityMagicBolt.func_70088_a(EntityMagicBolt.java:833)
at net.minecraft.entity.Entity.(Entity.java:217)
at net.minecraft.entity.projectile.EntityThrowable.(EntityThrowable.java:43)
at electroblob.wizardry.entity.projectile.EntityMagicProjectile.(EntityMagicProjectile.java:43)
at com.favouritedragon.arcaneessentials.common.entity.EntityMagicBolt.(EntityMagicBolt.java:95)
at com.favouritedragon.arcaneessentials.common.entity.EntityFireball.(EntityFireball.java:24)
at com.favouritedragon.arcaneessentials.common.spell.fire.Frizz.cast(Frizz.java:42)
at com.favouritedragon.arcaneessentials.common.spell.fire.Frizz.cast(Frizz.java:33)
at electroblob.wizardry.item.ItemWand.cast(ItemWand.java:488)
at electroblob.wizardry.item.ItemWand.onUsingTick(ItemWand.java:452)
at net.minecraft.entity.EntityLivingBase.func_184608_ct(EntityLivingBase.java:2678)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2097)
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:234)
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:382)
at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:173)
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:209)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:285)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:790)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Thread.java:745)

[TeslaP09]

Yep, same issue, just flying around in creative, wizards fighting hostile mobs, sudden crash because of an unregistered serializer:

  | Time: 2026-01-15 20:31:04 CET -- | --   | Description: Ticking entity   |     | java.lang.IllegalArgumentException: Unregistered serializer com.favouritedragon.arcaneessentials.common.entity.data.Behaviour$BehaviorSerializer@18a17af5 for 7!   | at net.minecraft.network.datasync.EntityDataManager.register(EntityDataManager.java:117)   | at com.favouritedragon.arcaneessentials.common.entity.EntityMagicBolt.entityInit(EntityMagicBolt.java:833)   | at net.minecraft.entity.Entity.(Entity.java:217)   | at net.minecraft.entity.projectile.EntityThrowable.(EntityThrowable.java:43)   | at electroblob.wizardry.entity.projectile.EntityMagicProjectile.(EntityMagicProjectile.java:43)   | at com.favouritedragon.arcaneessentials.common.entity.EntityMagicBolt.(EntityMagicBolt.java:95)   | at com.favouritedragon.arcaneessentials.common.entity.EntityWaterBall.(EntityWaterBall.java:26)   | at com.favouritedragon.arcaneessentials.common.spell.water.Splash.cast(Splash.java:46)   | at com.favouritedragon.arcaneessentials.common.spell.water.Splash.cast(Splash.java:34)   | at electroblob.wizardry.entity.living.EntityAIAttackSpell.attemptCastSpell(EntityAIAttackSpell.java:217)   | at electroblob.wizardry.entity.living.EntityAIAttackSpell.updateTask(EntityAIAttackSpell.java:191)   | at net.minecraft.entity.ai.EntityAITasks.onUpdateTasks(SourceFile:129)   | at com.bloodnbonesgaming.calmdownzombieguy.EntityAITasksOverride.onUpdateTasks(EntityAITasksOverride.java:29)   | at net.minecraft.entity.EntityLiving.updateEntityActionState(EntityLiving.java:888)   | at net.minecraft.entity.EntityLivingBase.onLivingUpdate(EntityLivingBase.java:2359)   | at net.minecraft.entity.EntityLiving.onLivingUpdate(EntityLiving.java:678)   | at electroblob.wizardry.entity.living.EntityWizard.onLivingUpdate(EntityWizard.java:297)   | at com.windanesz.ancientspellcraft.entity.living.EntityWizardMerchant.onLivingUpdate(EntityWizardMerchant.java:87)   | at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:2179)   | at net.minecraft.entity.EntityLiving.onUpdate(EntityLiving.java:377)   | at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:1996)   | at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:832)   | at net.minecraft.world.World.updateEntity(World.java:1958)   | at net.minecraft.world.World.updateEntities(World.java:1762)   | at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:613)   | at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:767)   | at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:668)   | at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:279)   | at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)   | at java.lang.Thread.run(Thread.java:750)