Cant delete transitions anymore

[miguelfanclub]

Right button is no longer working on top of transitions so i cant delete any.
Has happened all of the sudden.

This is the error i get when right clicking on a transition:

ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
System.ThrowHelper.ThrowArgumentOutOfRangeException (System.ExceptionArgument argument, System.ExceptionResource resource) (at <9577ac7a62ef43179789031239ba8798>:0)
System.ThrowHelper.ThrowArgumentOutOfRangeException () (at <9577ac7a62ef43179789031239ba8798>:0)
System.Collections.Generic.List`1[T].get_Item (System.Int32 index) (at <9577ac7a62ef43179789031239ba8798>:0)
HutongGames.PlayMaker.ActionData.CreateAction (HutongGames.PlayMaker.ActionData+Context context, System.Int32 actionIndex) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Classes/ActionData.cs:891)
HutongGames.PlayMaker.ActionData.LoadActions (HutongGames.PlayMaker.FsmState state) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Classes/ActionData.cs:776)
HutongGames.PlayMaker.FsmState.get_Actions () (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Classes/FsmState.cs:738)
HutongGames.PlayMakerEditor.FsmInfo.FindActionsUsingEvent (HutongGames.PlayMaker.FsmState state, System.String eventName) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmInfo.cs:331)
HutongGames.PlayMakerEditor.FsmInfo.FindActionsUsingEvent (HutongGames.PlayMaker.Fsm fsm, System.String eventName) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmInfo.cs:320)
HutongGames.PlayMakerEditor.FsmInfo.FindActionsUsingEvent (System.Collections.Generic.List`1[T] fsmSelection, System.String eventName) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmInfo.cs:307)
HutongGames.PlayMakerEditor.FsmInfo.FindActionsUsingEvent (System.String eventName) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmInfo.cs:297)
HutongGames.PlayMakerEditor.FsmInfo.FindActionsTargetingTransition (HutongGames.PlayMaker.FsmState state, System.String eventName) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmInfo.cs:163)
HutongGames.PlayMakerEditor.FsmGraphView.GenerateContextMenu () (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmGraphView.cs:1640)
HutongGames.PlayMakerEditor.FsmGraphView.DoContextMenu () (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmGraphView.cs:1517)
HutongGames.PlayMakerEditor.FsmGraphView.DoCanvasView () (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmGraphView.cs:428)
HutongGames.PlayMakerEditor.FsmGraphView.OnGUI (UnityEngine.Rect area) (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmGraphView.cs:400)
HutongGames.PlayMakerEditor.FsmEditor.OnGUI () (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmEditor.cs:613)
HutongGames.PlayMakerEditor.FsmEditorWindow.DoGUI () (at Assets/PlayMaker/Editor/FsmEditorWindow.cs:136)
HutongGames.PlayMakerEditor.BaseEditorWindow.OnGUI () (at C:/Projects/Playmaker_1.9.0/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/BaseEditorWindow.cs:117)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditor.DockArea.OldOnGUI () (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.EventDispatchUtilities.PropagateEvent (UnityEngine.UIElements.EventBase evt) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToRegularTarget (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToTarget (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel iPanel) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <e11cddb636f444f68eec62123764f018>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <2500dd078a544a69b6c923861af6cd15>:0)

[ch1ky3n]

it seems something messed up with your PM, why don't you

1. go to C:\Users\User\AppData\Local\Unity\Asset store
and locate your PM folder it is under hutong games and delete it

2. then redownload Playmaker from asset store (it is brand new 1.9.1  and tons of improvements too)

3. delete Playmaker on your project and when you're done, import it from the package manager

4. it should solve your problem

Good Luck