This keeps happening to me every time I play this game lol. And seems like most of my friends have experienced the same thing.
Everyone in the game would be stopped and bring everyone back to the lobby. The SR would stay the same but it is just extremely annoying because sometimes when you are dominating the game and this suddenly happens. It sucks because it truly wastes my time and my joy.
It happens A LOT recently, and in fact, this problem has lasted from last season.
Blizzard fix your game please!!! Thank you!