Thank you for your answer!
But, I want to check at the same time with when I executing sew command.
Looks like a good ER to me ... can you please file one for the same.
Thanks to your attention for this issue.
I just create one block and used Unsew command for create sheet body.
And then I executed sew command for recreate solid body.
This issue was found by my customer, and I need to answer for this issue.
So, I'm testing and finding solution for this issue.
There are no issue on my system...
But, appear on my customer's system...
Simply hit the 'show result' button before to hit the 'ok' button in wireframe mode.
Assuming that your using NX11.0.0 mp1 or NX11.0.1 (which both have the fix).
If you hit Apply, rather than OK when using the Sew command, the gaps are highlighted.