Questione giuridica chiave
Whether the cantonal court correctly assessed residual work capacity and invalidity after 1 February 2008.
Decisione estratta
The federal court could not verify the assessment because the findings on work capacity and the invalidity calculation were unclear.
Motivazione estratta
It was unclear whether the lower court had reduced work capacity itself or only the loss of earning capacity, and the chosen method of assessing invalidity was not identifiable.