Luckily my relatives have been down the last two weeks so I've not played the game but before I stopped playing I saved my exported files( I've not done it for months) and I started playing today and for some unknown reason my exported folder completely disappeared, if I hadn't have saved it I would have lost everything and it would have been game over.
The morale of the Story for everyone who saves u horses to export is make sure u back it up regularly or it could end in disaster.