I'm tryna use the A350-900 ULR to do a flight, but I cannot sit 15-16 hours at my computer. While using time compression at 4x mid-flight, the plane just starts to bank 30 degrees and pitches straight down while the a/p disconnects. It works fine in 2x compression, but i would much rather use 4x. It's not a performance issue as I can run 4x on other aircraft perfectly. My turbulence is on low, and I have all assists off. What else can I do?