Can you click the FSM tab and check the Data Version at the bottom of the inspector? It should say 2 unless it's a very old project.
What version of Playmaker and Unity did you update from?
If it says Data Version 1, try running PlayMaker > Tools > Update All Loaded FSMs
BACKUP your project first!
Or making any change to the FSM, e.g. moving a state should resave the FSM with the new Data Version.