Update 24Jun2011 Using Aces High 2.24.5:
The same missions reported above still perform as described in prior messages of this thread.
I just tried the "Yamamoto" mission version that I published on my web site. I tried both of the recent versions (for 2.21 and 2.22) and had NO success. I have also had problems with the current version (2.24.5) of the Mission Editor.
Accordingly, add this to the list of missions that DON'T work any more with version 2.24.5.
It seems that about half of my missions still work. I'm not sure of the underlying pattern, but my best theory is that smaller, simpler missions compiled for versions 2.21 or 2.22 of Aces High are more likely to work properly than larger, more complex, or older ones.
More testing to follow....