Never met this issue before. However what if you try to use filter points, or filter edge tools?
From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Alan Fregtman Sent: Tuesday, June 26, 2012 4:46 PM To: XSI Mailing List Subject: Any tips to fix non-manifold vertices in Soft? Hey guys, We're making some "shells" with ZBrush and when they come in they sometimes have non-manifold vertices, the only kind of non-manifold geometry that XSI unfortunately permits. Any modelers out there know any tool to find and/or fix this sort of bad geo? Right now I'm opening Maya and using Mesh->Cleanup. There must be a better way. Any help appreciated. Cheers, -- Alan