wrong location / chunk error

[Chucky5150]

FTB Launcher version: 1.2.2
Minecraft Version: 1.4.74
Java version: Java 7 update 15
Mod Pack: DW20
Detailed description of the issue / how can the issue be recreated: I went to the location of this error in creative mode and it all looked ok. The chunk seemed to be loaded just fine. I just don't know how to fix this.
Error logs (cliff note version):

2013-04-03 10:39:09 [INFO] [STDOUT] Wrong location! qc['Creeper'/361, l='New World', x=-116.49, y=45.00, z=197.50]
2013-04-03 10:39:09 [INFO] [STDERR] java.lang.Exception: Stack trace
2013-04-03 10:39:09 [INFO] [STDERR]at java.lang.Thread.dumpStack(Unknown Source)
2013-04-03 10:39:09 [INFO] [STDERR]at zz.a(Chunk.java:923)
2013-04-03 10:39:09 [INFO] [STDERR]at yc.a(World.java:2338)
2013-04-03 10:39:09 [INFO] [STDERR]at in.a(WorldServer.java:647)
2013-04-03 10:39:09 [INFO] [STDERR]at yc.g(World.java:2255)
2013-04-03 10:39:09 [INFO] [STDERR]at yc.h(World.java:2109)
2013-04-03 10:39:09 [INFO] [STDERR]at in.h(WorldServer.java:516)
2013-04-03 10:39:09 [INFO] [STDERR]at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:680)
2013-04-03 10:39:09 [INFO] [STDERR]at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)
2013-04-03 10:39:09 [INFO] [STDERR]at bdz.q(IntegratedServer.java:123)
2013-04-03 10:39:09 [INFO] [STDERR]at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)
2013-04-03 10:39:09 [INFO] [STDERR]at fy.run(SourceFile:849)

MinecraftLog.txt
World Save
Thank you for your help.

 

[Chucky5150]

This is really starting to cause some lag in a single player environment. I've even tried to fix it with MCedit (with what little knowledge I have of that program). I've tried searching for answers on google and other sites. If I posted this in the wrong location I'm sorry and maybe it could be moved to a better section of the forums.

Thank you.

 

[Booker The Geek]

Please follow the link in my signature about log files.

 

[Chucky5150]

ForgeModLoader-client-0.log (1of3): http://pastebin.com/H9tH2RHN
ForgeModLoader-client-0.log (2of3): http://pastebin.com/yacaZBTy
ForgeModLoader-client-0.log (3of3): http://pastebin.com/DiVM8zFe
Crash Report: http://pastebin.com/cVN0ptjr

Hope this is everything you need.
If anything is missing I'll get back to it as soon as I can.

Thank you.

 

[Booker The Geek]

I loaded your world, and it worked fine for me... In creative or not

 

[Chucky5150]

Thank you for loading the world. I guess that would mean it isn't a world issue. However this problem is still very much happening on my end. I don't know how else to troubleshoot what is going on.

 

[Chucky5150]

I retried some things that didn't seem to work (deleting chunk in MCedit) and now it seems to load fine. We'll see how this goes.

 

[NdMSnIpEz]

Exactly the same problem. It may seem gone. But it comes back. Twice as worse. It spreads like a virus. Unstoppable in it's path, so close to eating my base and humiliating me.
Started off as this:

Now It's devoured half of my world. I can't even load it...