Hmmmm....Not having much luck. I've done a bit of testing: If I increase time warp 1 tier at a time, with a 5 second break after each change (on the way up and then back down), I explode If I jump all the way to max, and then back to 1 tier above normal speed, and then wait until the onscreen counter has settled at 5x before reducing to 1x, I explode (seemingly regardless of whether I add waits between steps or not) If I jump all the way to max and then right back to normal speed, I explode except if I've been at the max for over (roughly) 400 Kerbin days [ <------- this one's weird, right?] Also, if--after the explosion--I load a quicksave that I made before testing the time warp, or revert the flight to launch, I explode immediately upon loading. At this point, I've had the issue occur in low Kerbin orbit, high Kerbin orbit, high Duna orbit, and on transfer orbit between Kerbin and Duna, but most of my testing has taken place at about 120km over Kerbin. In case it matters, these are my current warp rates (I've tried a couple of combinations, but the outcomes seem to be consistent with the above in any case where the top tier is higher than the standard vanilla-KSP speed). 1 5 10 100 1000 10000 100000 500000 Why am I so bad at bending space and time? P.S. Thanks again for your help. I feel ridiculous since nobody else seems to be posting any functionality issues at all!