If you have match replays on in the extras menu, look for this match. That should show your inputs and his at that moment.
What I suspect happened, from him holding block, to the way SZ moved just before freeze and how SZ was thrown back taking no damage, you look like you went for a throw. Whatever transition happened, clone immediately froze him before his block animation had a chance to go away. Again, the in game match replay would either confirm or debunk this.