It seems pretty random, maybe about ten percent of the time. It happens on all queues, too.
It's a little more likely to happen in 3v3 or 4v4 queues as there's more chance of a player dropping out or not connecting with the game and the system misattributing that.
And a lot of the time, it doesn't matter much. Because if it only happens once in a session, you just get your warning and carry on. But sometimes, as for me last night, it happens several times. I was in the middle of a ten minute timeout when I posted this. I went back and immediately got timed out for half an hour.
Does grafana show enough detail about who is responsible for matchmaking failures? Or just that there are failures and it points at someone. I am pretty sure that the testing for it is not 100% right, given my experiences.
Especially after watching the ICE reconnection message when someone saw the map and dropped out of the game. I waited another 45 seconds, and only dropped out myself when the launch timer was down to about 15 seconds, so I could get back into the next queue.
I definitely recognise the need for this, just feel that maybe it's not necessarily picking up the right culprit all the time.

