What version of InDesign (important because the Hyperlinks feature was changed in InDesign CC)? What platform?
I'm using Indesign CC 2014, on Windows 7.
Try this: Open the Hyperlinks panel. From the panel menu, select Delete Unused Destinations.
Finally got a chance to try your suggestion.
Unfortunately, it doesn't work.
Not only does it wipe out my good Hyperlink Destinations (which are used by OTHER documents in the book), it also fails to delete the undeletable "phantom" Hyperlink Destination anyway.
It's stuck in there for good.
Here's another one to try: Save the InDesign file as IDML, then reopen. It might clean corruption within the INDD file.
That's a great suggestion, and I tried it, but the undeletable Hyperlink Destination survived.
And still didn't show up in the list of already defined Hyperlink Destinations:
So, I started eliminating layers and trying again to define a new Hyperlink Destination using the name "Blank White" that was somehow taken, each time I'd delete an entire.
After nixing a few layers, I was actually able to use "Blank White" again. I kept going . . .
Once I knew the affected layer, I then narrowed it down to text object responsible. Guess which one it was . . .
Yeah, the "Blank White" header itself.
Apparently I'd used the same exact text to define two Hyperlink Destinations, and in that case the Hyperlink Destination named "Blank White" didn't show up in the Hyperlink Destination Options dialogue.
Had to delete the affected text, then re-type it and re-define my Hyperlink Destination.
geeze . . .
Steve, thanks for your help, though!