Either you're CSP's are making the file size of your common5 too big, it's a really...I'm going to say fragile file and if the file size increases from it's original size (I can't remember what that is) it will freeze the game.
The other problem is not your CSP's but your Character's textures themselves. If the CSP's are showing at the character select screen and it doesn't freeze, then you're textures are freezing the game (for whatever reason.) OR if you're using CBP's, the character battle portraits then they might be too big as well. SO unfortunately you need to check your textures, CSP's and BP's...

Hope this helps