The link below has information on the latest version of State Designer:
opsive.com
This update has been released on the Opsive Store and will be on the Asset Store soon.
State Designer 1.3.2 Released - Opsive
The latest version of State Designer is making its way to the Opsive Store and the Asset Store. For projects using prefab-based GameObject or Scene . . .
opsive.com
This update has been released on the Opsive Store and will be on the Asset Store soon.