Jersey preview screen

I have created a jersey and now I want to make a preview to show up on the select jersey screen. I export a jersey big from the jerseys.viv file. I rename everything to be the new name and then I import it back into the viv file. Everytime I try to load the jersey in the game, it crashes. Any help would be appreciated!
Thanks

After I put all the files in, I usually hit rebuild a couple times then it should work.