Working on different application I “managed” to remove cursor from “angle between faces” window during extractConnectedMeshFaces. Result is that I continue to get a number request for the command but I’m unable to put the cursor in the line to write it. I had to kill rhino and get back.
Thanks for the report. If you still see this, can you post the mesh or send it to tech@mcneel.com ? I’m unable to reproduce this here in Rhino 5 for Windows. Thanks.