Someone else bumped into this ?
Did this happen with all scenes created with the older MtI versions or with one special scene ? Did this happened if you closed the two MtI windows before opening the scene ?
ior, the dump data is not relevant to MtI; however I have an idea on a plausible cause. Since I can not seem to reproduce the crash, you will debug this yourself 

 The pay off might be an inmediate fix.
1) reinstall 
beta 2 
test 5
2) find the file 
mti_CHK_self.mel that was just installed (in 
'user/Documents/Maya/scripts'), open it in any editor
3) into the block 
global proc mti_init() (around line 219), find:
Code: Select all
	mti_newSceneJob;
	mti_sceneOpenedJob;
Comment the two lines out (write "//" (two slashes) before the command) and save the file.
4) Restart Maya (!) and let me know.
Normally the MtI windows present should just close, and Maya should not crash 
 
- - - -
I have fixed the two issues Lemo and SreckoM submitted (pivots reset on export, wrong identification of visible instances) and I finally did a decent UI for textures, the former was some rigid auto layout. I'm at tinkering around a burn (now "convert to file") bug and will update then.
edit: in fact I'm rewriting the texture pipeline, it deserved this.