Thanks for the reply. I have and am using Version 0.15.9 (installer 0.15.9). I have restarted Obsidian many times in the course of my project. Today, I uninstalled the app, and all of its related folders. I downloaded Version 0.15.9 (installer 0.15.9) again from Obsidian.md, opened my vault, and it did not fix it. There are 0 backlinks appearing in my main research notes which contain many [[ ]] and are the heart of the project. The notes I built from these connections do show (#) Backlinks, and Linked Mentions. It’s like if trees were only branches and leaves.