Less quality with XMP

Hi,

 

I have a rigg scan and work with xmp for great align. The problem is when i export xmp and put this xmp in other scan the reconstruction have less quality than the same scan without xmp. Obviusly if not have xmp the align no is complete but the reconstruction is better. Have any solution? Is posible work with the same scan with xmp and without xmp?

Can I open images with xmp define ground plane and area of reconstruction and use the same configuration with the scan without xmp for the scale and position use the same?

In this case I use the first scan for great align and the second scan for great reconstruction.

 

Thank you