I was disconnected from a ranked game while in a party with my friends. They got into the game, it said that I also was in the game, but it didn't load for me. Few seconds later, before the map ban started, I was disconnected from the match, and my friends said that someone else connected instead of me. I couldn't connect back to the game. I had to restart my computer because it said that Rainbow was still running, but the task manager said that it was not running. After restarting my computer I tried joining back into the game, but there wasn't an option for it, because my place was already filled with a random player, who joined the ranked at the beginning of the match. When the game ended I received a 30-minute ban from ranked and unranked modes, -50% renown loss, and I also lost 90 mmr.
Hello!
I'm very sorry to read you both experienced issues reconnecting to your matches; I know it must be incredibly frustrating.
We don't have a way of knowing what happened with your individual matches, however we're keeping on top of any reports so we can inform our dev team. It's important we improve Rainbow Six Siege in any way we can; and your forum posts help towards that.
I wish you both all the best!