I contacted support and they've reached back:
We are sorry that you have not been able to watch any Highlights from the Carabao Cup match against Norwich.
This is due the broadcasting rights for Carabao Cup matches.
Unfortunately we are unable to broadcast any highlights of the match to international (Non-UK) supporters until midnight on the day after the match. i.e. Midnight on Wednesday for a Tuesday match.
We are sorry for any inconvenience this has caused.
So they will become available after all, but we already got the solution. Strange that I didn't have any issues last year? Or maybe because LFC got out of the cup quite quickly?