---- Minecraft Crash Report ---- // Uh... Did I do that? Time: 6/22/16 8:53 AM Description: Exception ticking world java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.remove(HashMap.java:1443) at lr.d(SourceFile:198) at ls.d(SourceFile:202) at net.minecraft.server.MinecraftServer.D(SourceFile:618) at net.minecraft.server.MinecraftServer.C(SourceFile:554) at bzl.C(SourceFile:155) at net.minecraft.server.MinecraftServer.run(SourceFile:458) at java.lang.Thread.run(Thread.java:745) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Server thread Stacktrace: at java.util.HashMap$HashIterator.remove(HashMap.java:1443) at lr.d(SourceFile:198) at ls.d(SourceFile:202) -- Affected level -- Details: Level name: Cheaty Survivalist All players: 0 total; [] Chunk stats: ServerChunkCache: 394 Drop: 123 Level seed: 7407429128597744888 Level generator: ID 00 - default, ver 1. Features enabled: true Level generator options: Level spawn location: World: (-116,64,248), Chunk: (at 12,4,8 in -8,15; contains blocks -128,0,240 to -113,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Level time: 265624 game time, 263620 day time Level dimension: -1 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 109674 (now: false), thunder time: 66046 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true Stacktrace: at net.minecraft.server.MinecraftServer.D(SourceFile:618) at net.minecraft.server.MinecraftServer.C(SourceFile:554) at bzl.C(SourceFile:155) at net.minecraft.server.MinecraftServer.run(SourceFile:458) at java.lang.Thread.run(Thread.java:745) -- System Details -- Details: Minecraft Version: 1.10.1 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 176300664 bytes (168 MB) / 399974400 bytes (381 MB) up to 1060372480 bytes (1011 MB) JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 Profiler Position: N/A (disabled) Player Count: 0 / 8; [] Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.