• I am running the latest mod versions of MCA and RadixCore.
• [] I can reproduce this issue with just MCA and RadixCore installed.
• I can provide my Minecraft version and MCA version.
• I have searched for the issue previously and it was either not previously reported, or previously fixed and I'm having the same problem.
• I am crashing and can provide my crash report.

5.2.0

Updated from 5.1.1.2 to 5.2.0, the first time the server loads it crashes creating an error report, after that it will load but the villagers have vanished, I'm testing the update on a backup of my primary server so I can reproduce by re-copying the world folder and running again.

---- Minecraft Crash Report ----

WARNING: coremods are present:
dsurroundcore (DynamicSurroundings-1.8.9-2.0.5.6.jar)
Contact their authors BEFORE contacting forge

// Why did you do that?

Time: 12/09/16 22:28
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
at mca.ai.AIWorkday.onUpdateServer(AIWorkday.java:62)
at mca.ai.AIManager.onUpdate(AIManager.java:45)
at mca.entity.EntityHuman.func_70071_h_(EntityHuman.java:361)
at net.minecraft.world.World.func_72866_a(World.java:1860)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:699)
at net.minecraft.world.World.func_72870_g(World.java:1829)
at net.minecraft.world.World.func_72939_s(World.java:1661)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:544)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:701)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:344)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)
at java.lang.Thread.run(Unknown Source)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Stacktrace:
at mca.ai.AIWorkday.onUpdateServer(AIWorkday.java:62)
at mca.ai.AIManager.onUpdate(AIManager.java:45)
at mca.entity.EntityHuman.func_70071_h_(EntityHuman.java:361)
at net.minecraft.world.World.func_72866_a(World.java:1860)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:699)
at net.minecraft.world.World.func_72870_g(World.java:1829)

-- Entity being ticked --
Details:
Entity Type: MCA.EntityHuman (mca.entity.EntityHuman)
Entity ID: 132
Entity Name: Jade
Entity's Exact location: -326.53, 57.00, 287.12
Entity's Block location: -327.00,57.00,287.00 - World: (-327,57,287), Chunk: (at 9,3,15 in -21,17; contains blocks -336,0,272 to -321,255,287), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Entity's Momentum: 0.00, -0.08, 0.00
Entity's Rider: ERROR NullPointerException: null
Entity's Vehicle: ERROR NullPointerException: null
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1661)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:544)

-- Affected level --
Details:
Level name: world
All players: 0 total; []
Chunk stats: ServerChunkCache: 625 Drop: 0
Level seed: -6738292633650397043
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: -228.00,64.00,228.00 - World: (-228,64,228), Chunk: (at 12,4,4 in -15,14; contains blocks -240,0,224 to -225,255,239), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 294973201 game time, 298613155 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 95158 (now: false), thunder time: 97204 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:701)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:344)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.8.9
Operating System: Windows Server 2012 R2 (amd64) version 6.3
Java Version: 1.8.0_11, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1044910224 bytes (996 MB) / 1412956160 bytes (1347 MB) up to 3817865216 bytes (3641 MB)
JVM Flags: 2 total; -Xmx4096M -Xms1024M
IntCache: cache: 13, tcache: 0, allocated: 13, tallocated: 95
FML: MCP 9.19 Powered by Forge 11.15.1.1722 15 mods loaded, 15 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.19} Minecraft Coder Pack
UCHIJAAAA FML{8.0.99.99} Forge Mod Loader
UCHIJAAAA Forge{11.15.1.1722} Minecraft Forge
UCHIJAAAA AutoSapling{1.0} [Auto Sapling](AutoSapling 1.2 MC1.8.9.jar)
UCHIJAAAA basemetals{1.8.0} Base Metals
UCHIJAAAA cfm{3.6} MrCrayfish's Furniture Mod
UCHIJAAAA lootablebodies{1.4.1} DrCyano's Lootable Bodies
UCHIJAAAA dsurround{2.0.5.6} Dynamic Surroundings
UCHIJAAAA RadixCore{1.8.9-2.1.2} RadixCore
UCHIJAAAA MCA{1.8.9-5.2.0} Minecraft Comes Alive
UCHIJAAAA mineralogy{2.6.1} Mineralogy
UCHIJAAAA poweradvantage{1.5.6} Power Advantage
UCHIJAAAA steamadvantage{1.5.3} Steam Advantage
UCHIJAAAA thelittlethings{1.2.4} [The Little Things](The Little Things-v.1.2.4-mc1.8.9.jar)
UCHIJAAAA zc_villages{0.11.4} [ZC Villages](ZC Villages-0.11.4-1.8.9.jar)
Loaded coremods (and transformers):
dsurroundcore (DynamicSurroundings-1.8.9-2.0.5.6.jar)
org.blockartistry.mod.DynSurround.asm.Transformer
Profiler Position: N/A (disabled)
Player Count: 0 / 20; []
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)

Oh, is there any safe way to update to 5.2.0, even if it means a bit of manual work fixing the save files? Also if I can update the server to 1.9 would that solve the issue?

I'm stuck on 1.8.9 until 'crayfish furniture' and 'the little things' go up to 1.9....

Thanks

I believe this is already fixed in 1.10.2, unfortunately I'm not supporting 1.8.9 anymore.