Roblox said Wednesday that its core businesses in the U.S. and Canada have surpassed their peak levels during the pandemic, and sales of its digital currency Robux—its main source of revenue—have rebounded 10% after two straight quarterly drops. But that wasn’t enough to soothe investors who focused on the gaming platform’s net loss of $297.8 million, four times bigger than a year ago, as hiring expenses and spending on data centers surged. New revenue sources, like advertising, should eventually offset those expenses —and act as a boon to the developers that make their livelihood off Roblox.