Final Cut Pro X :: Upgraded To 10.1.3 - Loads Libraries Then Crashes

I upgraded to FCPX 10.1.3 with no issues. Libraries loaded and all was well. I drag and dropped a video on the timeline and FCPX stalled, then crashed. Now, when I attempt to open it up it loads the libraries, sits for a few minutes and then crashes. 

I have repaired permissions.

Trashed FCPX preferences.

Ran a maintenance program (Onyx) 

I have a Time Machine backup that I accessed and brought 10.1.2 back into my apps folder (so now I have both). When opening 10.1.2 it asks to import my libraries. If I do this will I lose data or will it ruined my libraries. My only backup of the FCPX libraries is an online backup (backblaze) and will take years to restore.  

2 Questions: 

1. How do I troubleshoot my issue with 10.1.3?

2. Can I downgrade (already on my system) to 10.1.2 and when I import libraries that have been imported to 10.1.3 into 10.1.2 will Iose data? 

Processor: 2.93 GHz Intel Core i7
Memory: 24GB
Storage: 1TB internal, 9 TB external (FCPX scratch disk is a 4TB GRaid)
OS: Mavericks 10.9.4 

Here is the crash report:

Process:         Final Cut Pro [1967]
Path:            /Applications/Final Cut Pro.app/Contents/MacOS/Final Cut Pro
Identifier:      com.apple.FinalCut
Version:         10.1.3 (251130)

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