Looks like you got stung by this one in the patch.
Scenario #17
Captain in Akagi (record #1) = 1999 nobody instead of 423 T. Aoki
I always load the scenarios into the editor on the locations screen, and never see this happen. If loading on either the ships or air groups tab, you seem to have about a 50/50 chance of getting either Akagi or 24th Sentai with some form of corruption.
Nothing serious, and it's got a very simple fix

