Non-mappable, Trim Solid

Hi!

I have this problem couple of times by Hypemesh.:( I trim the Solid with lines – by vertor (z direction)- sweep all. Then the Solids turns out non- mappable. The same way with no curve of the solid, it still turns out non mappable.

Some one can tell me why this is keep happening? 

Thanks in advance!

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>