I have had the opposed problem .... my fighter planes got killed by phantom planes ....
My fighters squadron kept getting shot down once they take off from the CV when my CV is far away from any ships.
It happens quite often and I am suspecting it is due to my squadron using manual fighter firing. It never happens before the manual firing control of fighters released. It happens after my squadron using manual firing and get killed by enemy planes/ships, after that until the end of the match, that squadron will constantly get attacked and killed whenever it is airborne.
It only happens to my fighters but not torp/bombers.
p.s. I can have like e.g. squadron 3 getting killed unlimited times when there are fighters replenishing the squadron. It doesn't stop even if the original 6 planes got wiped out.