Hello, I have had this problem too,
I found out while trying to fix it to play together that once you pressed play and XIGNCODE3 doesn't launch with it, you can press on file repair or setting on that tiny white screen that doesn't do anything.
Once you press on settings you can see launch game automatically... make sure this is selected if you try and launch the game, I think we can all understand why.
Greetings,
Bubblespaiky
edit1: I can add screenshots if that's neccensary.