I have a real puzzle here with the region editor...

Basically I'm testing it out with some objects, generating a grassy moor with various rocks and bushes scattered around it. Everything was working fine, then I added a bunch of static bones to the object list which caused it to lock up. So I restarted and deleted the bones, basically got it back to the point where it was working before, but now it point blank refuses to work at all. Every time I hit generate, it starts to work and then locks up either at generating textures or objects in random coordinates.

So Far I've tried:

Deleting all objects to the point where it worked, saving and restarting.
Deleting all objects bar one or two to see if it was putting too much strain on my PC suddenly.
Re-installing the Creation Kit.
Making a new region and copying the objects over.
Making a new region and adding new objects (just to test if any region generation worked at all).
Trying it with and without the render window.

Repeating all of those steps after saving and restarting.

Strange thing is, it's worked without fail until today... the only things I can think of is maybe an update today caused it (not that I noticed one), or I suppose it could just be my mod file has become corrupted?

Any ideas? Obviously I'm not keen on the idea of restarting my mod after so much work! I've been restarting and fiddling around with the CK for about 6 hours now so I'd really appreciate some input.