I'm working on a large project and we recently updated to 1.7.8.3. After doing so we began to see rather obnoxious freezes within the editor when viewing PlayMaker content. One prefab with a PlayMaker FSM that we load (not the first for some reason) would cause a 16 second delay after loading when the game is playing (on a relatively fast PC). We removed all actions and even all states from the FSM and the delay persisted. It does go away if we remove the PlayMaker component. We eventually worked around it by deselecting "Draw PlayMaker Gizmos in Hierarchy".
Unfortunately we still see an equivalent pause the first time we select an object with Playmaker in it via the Editor hierarchy. It's also unfortunate to lose the PlayMaker gizmos.
Is this a known issue? Anyone have any other ideas about it?
