Kernrechtsfrage
Whether the cantonal court had to hear the requested witnesses about the auction timing and alleged departure of bidders.
Extrahierter Entscheid
The complaint could not succeed on that basis because evidence-taking and evidence appraisal are matters of cantonal procedure, not federal law, save for the limited free-assessment rule.
Extrahierte Begründung
A challenge under Art. 19 LP can only rely on federal-law violations; the alleged refusal to hear witnesses concerned cantonal procedural law and could not be reviewed in this appeal.