So after being away for a couple of months, I recently started a new game under the new patch (1.13b) as the Union. As almost always seems to happen--the south attacked a KY Militia on turn 4 (I think) at Paducha. Reading though the event log--The KY invaded by CSA did not fire.
I played this through until September '61 when I restarted to change a few early bids. Compeltely new file--This time the CSA attacks and destroys the Bowling Green Militia on turn 4--and still no KY invaded by CSA.
Have the triggers been changed or is it just something I am missing--KY still seems awfully rebellious...