China Vanke failed to secure bondholder approval to extend by one year a bond payment due on Monday, a filing showed, increasing the risk of default for the developer and renewing concerns about the crisis-hit property sector. The setback for state-backed Vanke, one of China’s highest-profile developers with projects in major cities, renews concerns about the property sector, where some of the country’s best-known developers have defaulted in recent years. The rejection in a three-day vote that...