Thank you very much for the detailed feedback, Sascha and Martin and Omar! Sorry I didn’t respond earlier; I went to bed and then had an early appointment this morning. Now I will try to fix this mess.
Sascha, those troubleshooting tool tips are great, I didn’t know about them. Also, it’s possible I made some seam lines with F instead of J, although I make a habit of using J to draw lines across existing faces. And I need to read more about when to use the knife tool, since I always forget about that.
I already watched the CORE tutorials many months ago, but forgot a few things, apparently. I’ve spent the past year learning Blender, SketchUp, Twinmotion, D5, and Unreal, so things get confusing sometimes. In some ways learning multiple apps helps me learn faster; in other ways I have to do remedial homework after awhile.
