I'm in FrogPart3_final, about 4:00 minutes in, and after extruding my edges and scaling them to close up the wrist before attaching the fingers, I am unable like the video to delete the "extra" edges--the ones at 45 degrees, but not 90. I have merged the vertices in the center. The error message is, "Warning_border edges can not be deleted." I've backed up and tried a bunch of times, any suggestions??
thanks all
Scott