Wynn Resorts says the recent Macau gaming slowdown is difficult to attribute to a single cause but remains optimistic that weaker customer spending will be temporary. The comments come as Macau records a fourth consecutive month of year-on-year GGR declines, with September revenue falling 1.2% to MOP18.06 billion. World Cup timing, seasonality and China’s offshore-tax policy are among the factors being considered as operators assess the market’s softer performance.