TFT decides to skip extra time making me lose a fight I was about to win

I was in a match of TFT and was doing pretty bad but decided to make a last second clutch change that made my team way stronger, next opponent comes (wich was a clone btw) and I get to have 4 units of mine against one of his before extra time comes, I was about to win and as soon as extra time starts the game finishes and makes me lose HP and the other player loses none due to being a clone of the original. it amazes me how RIOT killed TFT so hard with the last 2 patches, it used to be balanced but now its just an RNG mess with bugs everywhere.