Early missions not working properly

[zmatt 2]

This is a weird one i just noticed after decided to do a fighter sweep in an F-86A. Seems if I go into 1950 or earlier SF2 has trouble actually building the mission and putting other planes on the screen. I have made the correct ini edits to have expanded years and I have aircraft on both sides that go as far back as 1947 I think. 

 

For the F-86 as soon as I hopping in the cockpit TACCOM said mission accomplished as if I shot them all down. I tried another mission striking a target with a F-80 and the game crashed before getting to the loadout screen. Note if I got above 1950 It's fine.