Animations for people models don't work

Animations for people models don’t work though they worked in the previous versions of Unity (4.x) (Mecanim, Humanoid). Simple animations like rotation and shifting objects work. Legacy animations also work.

I got the error that can be connected with the not working animations:

Invalid editor window UnityEditor.Graphs.AnimatorControllerTool
UnityEditor.EditorApplicationLayout:FinalizePlaymodeLayout()

And I got the error:

Failed to destroy editor windows: #1
AnimatorControllerTool
UnityEditor.WindowLayout:LoadWindowLayout(String, Boolean)

I have sent the bug report:

Case 651280