Importing Models in Plaxis3D

Hello everyone, 

Hope you're doing well. 

Lately I'm trying to build my models easily in other softwares like Rhino 7 or Revit 21. Sometimes I encounter some errors that I understand why it causes some problems while Plaxis3D is trying to mesh. But other times, I really do not get where the error comes from. 

Is there a list of conditions to respect for intersections ? 

Thank you in advance. 

Cordially.