Yes I did encounter those problems. I no longer save in the middle of a flight (I only did do that once in the 707 anyway).

If I'm flying from SYD - HNL and it's going to take 10+ hours, I'll fly it for those 10+ hours. I do that with all my CS aircraft. I have flown many flights of 10 hours or more without saving mid flight. I can never get them going properly after reloading, although I think I could with the 707 if I did what I said above.

Mark