FIX YOUR CLIENT, RIOT.

Today a friend and I attempted to play a ranked solo/duo game. We were the first and last picks and I didn't want to go first, so we set up a trade. I would first-pick Rammus, and he would pick Sona for me. At the countdown I clicked the trade button and he clicked accept - nothing happened. We tried the reverse - nothing. Then the time ran out and our game started with him as Sona with smite and me as Rammus support.

Our teammates mentioned that this is a common occurrence with this client.

Please fix. Thanks.