Odd Forces

So after I reset my stage, I have a tower of pieces stacked and its stable with collisions and forces, but then all of a sudden I get like a 1000 fold jump in forces on some pieces and then they break ruining my tower. The other odd part is that it is always the same piece that breaks and its always about the same time after I restart my stage.
Here the log:

wrl wrl 0.094905853271484  
wrl wrl 0.094905853271484  
wrl wrl 0.053727984428406  
wrl wrl 0.053727984428406  
wrl wrl 0.34201526641846  
wrl wrl 0.34201526641846  
wrl wrm 0.02984893321991  
wrm wrl 0.02984893321991  
wrl wrl 0.018279168754816  
wrl wrl 0.018279168754816  
srl srl 0.043215777724981  
srl srl 0.043215777724981  
wrl wrm 0.00070037692785263  
wrm wrl 0.00070037692785263  
srl srl 0.070140682160854  
srl srl 0.070140682160854  
srl srl 0.033342085778713  
srl srl 0.033342085778713  
wrl srl 7.9850025177002  
wrl PIECE IS INSTA KILL WITH FORCE OF 7.9850025177002  
srl wrl 7.9850025177002  
srl PIECE IS INSTA KILL WITH FORCE OF 7.9850025177002  
wrl srl 0.28090924024582  
srl wrl 0.28090924024582  
wrl srl 0.23386335372925  
srl wrl 0.23386335372925  
  

As you can see it goes from less than 1 force to 7.9 in a single frame/collision but no other forces are acting upon the tower expect for its own wait.

Has anyone encountered this before. [import]uid: 54716 topic_id: 17067 reply_id: 317067[/import]

I’ve encountered abnormally large forces several times ( postcollision event.force ). I made a bug case here: http://developer.anscamobile.com/forum/2011/05/10/postcollision-reports-abnormally-large-force

Is it the same issue? Right now I’m using workarounds in my game to avoid this. [import]uid: 13507 topic_id: 17067 reply_id: 64083[/import]

Thanks I will add my problem log to this to give that thread a bump. [import]uid: 54716 topic_id: 17067 reply_id: 64148[/import]