Transformation Matrix [TM] - position accuracy issue

[chriss3d]

Hello,

I have got very simple flow. 

Object birth ,face fractured (saving TM of the fractures - ) then  time test , some particle manipulation and coming back to the same position [TM]. 
Unfortunately when they come back,  the position and rotation does not fit perfectly to their original state.
I tried different time step and the problem is still there.

Please find attached stills.

       
Thanks

Best
Chris