Saves folder problem with all packs

[Narwhal]

Any time I modify a world folder in saves in any pack that world doesn't show up anymore in game. This problem has happened with all packs i have played recently.

 

[Zaflis]

How do you modify the world folder?

 

[Narwhal]

How do you modify the world folder?

The first time it happened i was playing and then FTB just closed and my world didn't show up anymore, and then i made a new world, deleted the stuff in it and then put the folders from my other world in it and then that didn't show up.

This is the first time i had the problem maybe it will clarify

Mod Pack: Direwolf20
Mod & Version:1.6.4
Pastebin link to crash log: http://pastebin.com/naxj1sEF# (I also have a video, but i dont think it shows anything)
Whats the bug? Im not sure, ill be doing something in game and then FTB will just close. And my world doesnt show up in game when i alter it in the saves folder.
Can it be repeated? Yes (but i dont know how its happening)
Known Fix:[DOUBLEPOST=1388341590][/DOUBLEPOST]

How do you modify the world folder?

But like i said i was playing then all the sudden ftb closed and i went back into game and my world wasn't there (also happens when i modify a world in the saves folder

 

[Narwhal]

Saves folder: http://prntscr.com/2ewyzg

In game: http://prntscr.com/2ewzzx

 

[Zaflis]

It seems same kind of report as here: http://forum.feed-the-beast.com/threads/not-sure-if-morph-or-extra-utilities.37395/
He suggests updating morph http://ichun.us/mods/morph/

 

[Narwhal]

It seems same kind of report as here: http://forum.feed-the-beast.com/threads/not-sure-if-morph-or-extra-utilities.37395/
He suggests updating morph http://ichun.us/mods/morph/

I stoped using that world. I started playing Monster, but thanks anyway