Kernrechtsfrage
Whether the cantonal court acted arbitrarily by declaring the nullity appeal inadmissible because the appellant failed to challenge both alternative grounds of the first-instance decision.
Extrahierter Entscheid
No. In a nullity appeal governed by cantonal law, the appellant had to address each independent ground; leaving one sufficient ground untouched justified inadmissibility.
Extrahierte Begründung
A decision based on multiple independent reasons survives if one reason is not properly contested. Requiring a challenge to each branch does not contradict full review, because review is limited to sufficiently reasoned grievances.