No I didn't report an error. I debugged it myself for an hour or so. And eventually I rolled my system back to 0.5.7, which resolved the issue. I wish I would have kept the output, but it was late at night and I was more concerned with getting it fixed.
I'm thinking it might be best for me to just upgrade straight to 0.7 at some point. But, if you think there's value in me upgrading to 0.6.0 first, I'd be willing to give it a shot and report any errors. It's your call though. My intention is to help find and stamp out any potential issues. But, I don't want to create unnecessary work for anyone in the process.