VDM Mudbox ISSUE

[Anonymous]

HI Guys! This is my very first post!

First thanks for reading me, here is my problem

I Sculped a base model in Maya, quite similiar to the final one but not as detailed, i brought that model into Mudbox 2014, i sculped it and refined it.

Once i finished i wanted to extract the vector displacement map, i set the options well, and its quite weird cause once i press extract, extracts untill 54% 44% 50% percent and stops map it says ( Map extraction Done, no error message) but doesnt even start in proper way to create it, cause there is no time enough because the extraction process takes less than a minute, when it suppose to be a long wait 

Thing is when i create a new scene and sculped another figure, not more simple, just different... or open another model it works, well at least goes further than the 54%

Any ideas?  I Sculped in Mudbox 2013 but now im using Mudbox 2014

Thank you very much!