Renaming doesn't update links in one file

what’s wikilink “[[NoteName]]”?

Wikilink is just another name for link. Thing between square brackets [[...]].

Proposed solutions:
4. Did you follow the troubleshooting guide?
Maybe some plugins make trouble.
5. Try to enable Backlinks plugins
path: Settings/Core plugins/Backlinks
Click backlink (it should show at the bottom of your note).
6. Try to manually check what line cause problem (delete line and refresh).
7. Probably it isn’t Obsidian issue but Elecron issue:
Try to disable hardware acceleration : add app.disableHardwareAcceleration() to your Electron main.js.