Think they are in here (my path as example)
C:\OBDSoftware\WOTR\OBDWW2 Wings Over The Reich\campaigns\CampaignData\Pilots
Perhaps if you delete each pilot (claims, squad, dossier, log) , all pilots in one go or perhaps one by one, or, copy them out and paste them back in one by one it will work.
Last edited by ChiefWH; 12/12/18 07:35 PM.