Bo Ren

Hello Shiyan, 

Sorry to see the problems you have encountered. 

There are various reasons for causing this issue, but the most common reason is the model geometry error, for example, region intersections. My recommendation is to check your geometry model by clicking the 'Check' button, and the detail information will be shown in the 'message display' window.  

A tip here is that to avoid such geometry errors that may not be easily observed, I would suggest using the 'Ratios'  method to do the geometry parametrization that will help to creat the model more conveniently.


Best regards