so as the title already says: im using Galacticraft along with extraplanets, galaxyspace and amunra (and made sure to remove duplicate planets), to test things out, i went to jupiter generated by extraplanets and after placing sand and made it fall down, my client crashed. The crash log states that there was a ticking entity (i guess the falling sand) and the mod amun-ra is listed sometimes (no other mods):Caused by: java.lang.NullPointerException
at de.katzenpapst.amunra.block.ore.SubBlockOre.func_149692_a(SubBlockOre.java:111)

And here is the whole crashlog:
Minecraft Crash Report ----
// Who set us up the TNT?

Time: 6/24/16 5:20 PM
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
at de.katzenpapst.amunra.block.ore.SubBlockOre.func_149692_a(SubBlockOre.java:111)
at de.katzenpapst.amunra.block.BlockBasicMeta.func_149692_a(BlockBasicMeta.java:215)
at net.minecraft.entity.item.EntityFallingBlock.func_70071_h_(SourceFile:139)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

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

-- Head --
Stacktrace:
at de.katzenpapst.amunra.block.ore.SubBlockOre.func_149692_a(SubBlockOre.java:111)
at de.katzenpapst.amunra.block.BlockBasicMeta.func_149692_a(BlockBasicMeta.java:215)
at net.minecraft.entity.item.EntityFallingBlock.func_70071_h_(SourceFile:139)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)

-- Entity being ticked --
Details:
Entity Type: FallingSand (net.minecraft.entity.item.EntityFallingBlock)
Entity ID: 207746
Entity Name: Falling Block
Entity's Exact location: -276.15, 62.49, 520.43
Entity's Block location: World: (-277,62,520), Chunk: (at 11,3,8 in -18,32; contains blocks -288,0,512 to -273,255,527), Region: (-1,1; contains chunks -32,32 to -1,63, blocks -512,0,512 to -1,255,1023)
Entity's Momentum: -0.07, -0.00, 0.03
Immitating block ID: 560
Immitating block data: 9
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)

-- Affected level --
Details:
Level name: New World
All players: 1 total; [GCEntityPlayerMP['Sir_Ludicrous'/530, l='New World', x=-45.30, y=70.00, z=707.92]]
Chunk stats: ServerChunkCache: 1226 Drop: 0
Level seed: -531056123581944568
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 0 game time, 0 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: ERROR NullPointerException: null
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_73, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1166669768 bytes (1112 MB) / 5992611840 bytes (5715 MB) up to 7158628352 bytes (6827 MB)
JVM Flags: 3 total; -Xms256M -Xmx7680M -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 247 mods loaded, 247 mods active

Oh well, since this hasn't happened since then, I'll just close it

WTF. What block is Block ID 560 in your setup? Almost looks like one of my ores generated on your Jupiter and broke.

Small Bone segment by biomes´o´plenty (has different nbt values for different sizes). fortunately this crash only occured once ^^ (eventhough i´ve removed extra planets now due to some other wierd stuff)