big problem whan i save styles

i edit style and it's play good after i go to anader style and i back to style what i do
i see "N" ON screen and i can't play style
sameone konw what is the problem
thank you

maybe you are doing like i did
i edited style from usb stick
then saved, and then it disappeared

but you first need to copy to user area, then edit, then save

no i save on audya