HoloLens2 Application throws Exception "Could not create a device for ''Hand - Right (XRInputV1)"

since I updated my HoloLens2 Unity Project to Unity 2020.3 my deployed HoloLens2-Application (in Unity Editor they never happen) always throws the following Exceptions :

Could not create a device for 'Hand - Right (XRInputV1)' (Exception: System.ArgumentException: Expected control positionAccuracy to be of type 'AxisControl' but is of type 'IntegerControl' instead;) at UnityEngine.InputSystem.InputControll

Could not create a device for 'Hand - Left (XRInputV1)' (Exception: System.ArgumentException: Expected control positionAccuracy to be of type 'AxisControl' but is of type 'IntegerControl' instead;) at UnityEngine.InputSystem.InputControll

Did anybody face this problem and came across a solution or at least knows any since I didn´t find any positionAccuracy-Settings (or similar) in Unity or in MRTK?

I am using the MixedRealityToolkit 2.7.3 HoloLens2 default Configuration and noticed this problem at Unity Versions 2020.3.8, 2020.3.22 and 2020.3.26. Thanks in advance.

Best Regards !