Roblox misses with Q4 revenue of $568.8M vs. $604M est., up 83% YoY, average DAUs of 49.5M, up 33% YoY, and average bookings per DAU of $15.57; stock down 14%+ — Roblox, the platform for Lego-like user-generated games, reported its bookings for the fourth quarter ended December 31 were $770.1 million …