Yeh, you can't have submitted the lineup once you made the changes.
Doppietti wasn't in the listed team at all so it can't be an issue with the coach side of things as he wasn't listed in the active roster for the game. You can see this from the fact that he's not listed at all in the game that you linked.
Either you didn't include him when you set the lineup or you just didn't click 'send orders' after making the changes.