Whether the hearing violation caused by late disclosure of the university enrollment certificate required annulment of the first-instance order
The violation of the right to be heard was cured on appeal because the cantonal court had full review power and the father could address the document there; a remittal would have been futile.
A party must be able to comment on all evidence and submissions, but the defect can be remedied before an appellate court with full cognizance unless the violation is exceptionally grave; here the father knew the document from the first-instance judgment and could have argued its probative value on appeal.