SF2 Single Mission Editor CTD

[TheStig]

Hi, I'm getting a crash to desktop when using the single mission editor.  If I select the player flight, no matter what, it immediately crashes.  What would cause this?

 

The terrain is Formosa WW2. When automatically generating a single mission, it only targets a single ship too that appears to be underway on land!

 

Thanks in advance.

Edited Saturday at 11:37 PM by TheStig