I followed one of the AI tutorials, and using 4.6 implemented an AI that approaches the player to within a certain distance. It followed the player around, and if it got separated would return to its initial location.
After upgrading, it seemingly ignores the player, but will sometimes run off in another direction, then return to its starting point.
This was implemented just as a learning exercise and is of no importance to my project, just wanted to share that the upgrade did something to mess it up.
Cheers,
PaganCyC