Just in case anyone else is having this problem and finds this thread, I’ve found a work around for relinking if FCP is crashing. Its a solution that will be much harder if your media is scattered throughout your hard drive, or on multiple hard drives.
The solution is to simply Re-import all your media used in the project and upon importing select “leave files in place”
It’s a pain in the butt. However, it does work. Especially if your moving Libraries from hard drive to hard drive.
Hopefully Apple will overview the hundreds of bug reports that were automatically sent from my computer after FCPX continually crashed on me.
I hope this solution helps people that are having this same problem.
Damian