The title describes what's happening, and I want to to know how to clear the Broken Links list of these links.
Here's what I did
Here's what happened
It's possible that a mismatch is occurring between the project .CPD file and the main database. My suggestion would be to delete or rename the .CPD file.
You will find it among all your other files in the folder where your project exists.
Give that a go and report back what your outcome was.