If you open a UNSGroupB (Custom Target System Group) in the ManagerWeb application, the following error is displayed twice:
[System.InvalidCastException] Unable to cast object of type 'VI.WebControls.Edit' to type 'System.Windows.Forms.Control'.
[System.InvalidCastException] Unable to cast object of type 'VI.WebControls.Edit' to type 'System.Windows.Forms.Control'.
After that, the editing of the form continues normally without errors.
But there is also a problem displaying translated labels.