Well, after 31 1/2 hours of print, and about 20 minutes before it was completed, I decided to get ready to take a video. I brought in a light and plugged it into the same (non surge protected) power strip, and when I did, the print stopped!
I forgot how people have talked about power issues causing failed prints. Gotta learn some way. I guess there’s another UPS in my future.
I’ll have to give the print another go.