title: Deleting a self intersecting face by its number
body: <p>I have a mesh that I import to the Meshlab and simplify, clean, and reconstruct the mesh. I export the final mesh from meshlab and import into finite element software (COMSOL). While importing, I received the error message of "Self intersecting face,   Face:19303".</p>
  
  <p>Meshlab cannot find any self-intersecting face. How can I select the face 19303 and modify/delete it to fix the error?</p>
  
  <p>thanks,
  Hamed</p>