Maybe I missed something,

3200nm into a flight from Seattle to Tokyo. Everything looked great. I lost one engine due to Anti-Ice? Then I was able to restart it, then as I was climbing back up to Cruise, then both were lost, flat stall uncontrollable spin to the ocean, boom. Almost 7 hours gone in a flash. Why did this happen? I had the engine anti-ice to auto, and I was well above the clouds. Did I miss a step?