Unity 5.3 UI Bugs

I do not like to update the version of the large number of bugs that make Unity. But I need to do and build UWP no choice. After upgrading from 5.1 to 5.3 I have received a lot of mistakes Unity.

1)
ArgumentOutOfRangeException: Index and count must refer to a location withing string.
Parameter name: count
at System.String.Remove(Int32 startIndex, Int32 count)
at UnityEngine.UI.InputField.Backspace()
at UnityEngine.UI.InputField.KeyPressed(Event evt)
at...

Unity 5.3 UI Bugs