After applying UV coordinates in ZBrush (working on clone, unwrapping, and 
copy/pasting using UV Master) to my model I imported both the high and low 
poly objects into xNormal and the mapping seems to go accordingly (I am able to clearly see the generated normal map in the preview window) until a
 popup appears describing an error, which reads: ios_base::failbit
 set: iostream stream error.  Unfortunately I'm unable to save any maps due to the posted streaming error.   I have no idea what this means nor what 
possibly what I may have done prior to importing the high and low poly mesh 
into xNormal.    Should add I did a reinstall of the xNormal app., but the same problem reoccurs. Any advice or suggestions would be most appreciated. 
 
            
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