1: I am working on way to use this in the editor to add extra players to team. The game won't recognize the practice squad but they can be manipulated through the editor.
2: I think I added them all
3: When I placed a player on IR, he showed up in the IR list for me. The player was hurt in-game. Was the player the player you placed on IR healthy? Maybe that has something to due with it... I will investigate.