Hi the problem i have got is when u place a horse in a jump race, it goes missing,when u go to the screen that shows your horses the one u put in the jump race is not shown, but if u click my data the horse is there.so the only thing u can do with it is sell it.so this a bug that needs sorting out.

Obviously you are playing the combined flat & jump side of the game, when you are on your stables page, if you look up the top of that page you'll see a filter click that and nominate "Display All" and then click on "Lock Context", that should work for you zeroice your horses won't go missing again, cheers