[HELP] Custom modpack - all stones underground disappear!

[omrizod]

I made a hidden custom modpack a while ago, and I'm playing it with friends.

It's called Modders In Space: http://www.technicpack.net/modpack/details/modders-in-space.340368

And it happened to us several times, on my server, that ALL of the stones underground disappeared, and only bedrock, ores, and dirt were left, except the trees and houses we built and other stuff above the surface.

I was lucky, because I make backups once some stuff is done.

But it's still a very big problem.

 

IMPORTANT:

I'm pretty sure it's important, at the land I am there's "red granite" underground instead of normal stones, it's in one of the mods, and it's probably a problem with this block.

 

Please help me, any help would be very appreciated. Thanks!

 

EDIT:

Please help!

P.S: Maybe it's the wrong section? I'm not sure where I was supposed to post it, so please move it if needed.

Sorry.

Edited July 23, 2014 by omrizod