Rocket destroyed after leaving atmosphere in timewarp

[RocketSon4]

For the fun of it, I launched the stock kerbal-k2. After setting up a near orbit with the periapsis roughly where the rocket is, I clicked the timewarp to point, which I set near the apoapsis. When the altitude of the rocket crossed the 70 km mark, the game acted as if it had crashed in the tracking station and destroyed the rocket completely.