Cannot rename bones in unity b14?

I get this error when trying to rename a bone in unity beta 14 within skinning editor, is this error known? Any workaround?

ArgumentOutOfRangeException: startIndex cannot be larger than length of string.
Parameter name: startIndex
System.String.Substring (System.Int32 startIndex, System.Int32 length) (at <778dcb27abce4563a44dfeceaafaafa1>:0)
UnityEngine.TextEditingUtilities.DeleteSelection () (at <5b91894b90e7486ebc677a902c87eb6b>:0)
UnityEngine.TextEditingUtilities.Backspace () (at <5b91894b90e7486ebc677a902c87eb6b>:0)
UnityEngine.TextEditingUtilities.PerformOperation (UnityEngine.TextEditOp operation, System.Boolean textIsReadOnly) (at <5b91894b90e7486ebc677a902c87eb6b>:0)
UnityEngine.TextEditingUtilities.HandleKeyEvent (UnityEngine.Event e, System.Boolean textIsReadOnly) (at <5b91894b90e7486ebc677a902c87eb6b>:0)
UnityEngine.UIElements.KeyboardTextEditorEventHandler.OnKeyDown (UnityEngine.UIElements.KeyDownEvent evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.KeyboardTextEditorEventHandler.ExecuteDefaultActionAtTarget (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.TextEditingManipulator.ExecuteDefaultActionAtTarget (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.TextElement.ExecuteDefaultActionAtTarget (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtCurrentTargetAndPhase (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.CallbackEventHandler.UnityEngine.UIElements.IEventHandler.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.EventDispatchUtilities.HandleEventAcrossPropagationPath (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.EventDispatchUtilities.PropagateEvent (UnityEngine.UIElements.EventBase evt) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.KeyboardEventDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <29f85c5aae3f4a7cac8c67d945c2e781>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <5b91894b90e7486ebc677a902c87eb6b>:0)

CTRL+A on the text seems to work, but not when selecting it and typing expecting it to replace it.