'.' is not allowed in State name

Since upgrading from 5.4.1 to 5.5.1 (yup, quite a jump) I get this a lot in the console. Any idea what's causing it ? Web searching didn't yield any interesting result...

At first I thought it was a change in animator states name from 5.5, but I did a script to check all states and none have dots in it.

Code (csharp):

1. '.' is not allowed in State name
2. UnityEditorInternal.InternalEditorUtility:GetGameObjectInstanceIDFromComponent(Int32)
3. UnityEditor.SceneHierarchyWindow:FrameObjectPrivate(Int32, Boolean, Boolean, Boolean) (at C:\buildslave\unity\build\Editor\Mono\SceneHierarchyWindow.cs:1318)
4. UnityEditor.SceneHierarchyWindow:FrameObject(Int32, Boolean) (at C:\buildslave\unity\build\Editor\Mono\SceneHierarchyWindow.cs:1299)
5. UnityEditor.EditorGUIUtility:pingObject(Int32) (at C:\buildslave\unity\build\artifacts\generated\common\editor\EditorGUIUtilityBindings.gen.cs:490)
6. UnityEditor.ConsoleWindow:SetActiveEntry(LogEntry) (at C:\buildslave\unity\build\Editor\Mono\ConsoleWindow.cs:309)
7. UnityEditor.ConsoleWindow:OnGUI() (at C:\buildslave\unity\build\Editor\Mono\ConsoleWindow.cs:464)
8. System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception&)
9. System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
10. System.Reflection.MethodBase:Invoke(Object, Object[]) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
11. UnityEditor.HostView:Invoke(String, Object) (at C:\buildslave\unity\build\Editor\Mono\HostView.cs:249)
12. UnityEditor.HostView:Invoke(String) (at C:\buildslave\unity\build\Editor\Mono\HostView.cs:242)
13. UnityEditor.HostView:InvokeOnGUI(Rect) (at C:\buildslave\unity\build\Editor\Mono\HostView.cs:212)
14. UnityEditor.DockArea:OnGUI() (at C:\buildslave\unity\build\Editor\Mono\GUI\DockArea.cs:352)

 

All of that is from Unity trying to draw itself.

Try resetting the Layout (upper right corner - Layout->Default), and see if it goes away. If not, report a bug.

 

Check if there is any State with a '.' (dot) in the name then replace it

 

I did do that, I even did a script to do it for me, just to be sure, and it didn't find any. It's still happening from time to time in 5.5.1f1...