Just an update - removed all the N16 skins and still seeing a full complement of HA N16s in Escadrille LaF.

For now, my quick fix is to rename the N11 skins as N16 skins, so at least the 'look' is there

EDIT: Okay, I've noticed something else. I'm not sure, but I think that some of the HA ranks might be wrong for the time. Most of the HA's are commissioned (Adjutant) when to my understanding all the American pilots in the Lafayette were enlisted (IIRC, only Thaw was ever actually commissioned in the French army). Also, Georges Thenault is an Adjutant, when I am sure he should be a Capitane.