The gold miner on Monday flagged a hit to its full-year guidance as a dam wall breach led to operations being suspended at its main mine. After the market opened a technical glitch prevented S&P indices from updating on traders' screens, but the issue was resolved after about an hour, and trade on the Australian Securities Exchange (ASX) continued unaffected throughout. New Zealand's benchmark S&P/NZX 50 index rose as much as 0.3 percent to an all-time high of 8,491.7.