Roblox's free cash flow grew fivefold in Q2. Shares of Roblox (RBLX -5.71%), the popular online gaming platform, slid 6% through 12:45 p.m. ET Thursday after the company beat on earnings this morning (kind of), but also missed on sales (narrowly). Roblox didn't actually "earn" anything, you see, but analysts thought it would lose $0.39 per share on sales of $898.5 million in the second quarter. In fact, Roblox lost only $0.32 per share -- and so beat earnings. Sales, however, came in short at $893.5 million ...