The only explanation I can give is - you are actually running 3.60 (or lower) version prior to upgrade. Because LeasedByMachineName is added in 3.70, and remains there for 3.80. :)
That sounds like the most logical guess. I totally thought I was running 3.7 but wow maybe not. I'll go ahead and run 3.7 upgrade script and then 3.8 and see if that fixes it. Thanks!