Hi.
It best to update to latest version if you want to get rid if this
The exact playmaker version you can find in PlayMaker/Help/About Playmaker
i believe the latest version is 1.9.1p5 at the moment.
Before updating Always make a backup!
The reason it happens is : when you move something it will refresh and look for errors again.
And you probably have already several fsms/scenes etc. and the more fsms/states/events you have the longer it will take for PM to check Everything.
on 1.9.1 i believe that this is improved.
But if you want or have to stay on 1.9.0 you can Disable Some Error checking's in the Preferences (Playmaker window Bottom/Right)
