When trying to load a new squad file none of the files pop up

I had this problem too (as well as squad updates making all 70 of my created players have generic caveman faces...). I managed to fix it by starting a new career mode and clicking use current squads and then it started to show all my squad files again. But funnily enough, when starting the new career mode, it glitched out and quit the game completely. So I fixed the problem by encountering another problem. Classic EA making s**t games full of bugs...