Im not sure if this is common, or if it is exclusive to my friend group, but we have been experiencing a glitch in ranked that causes completed matches to have no effect on out mmr whatsoever. I restarted my game to make sure it wasn't just a visual bug, but it wasn't. The bug was definately related to issues with data syncing after matches, this would also result in no renown gain and increased percentage for alpha packs, as well as removing the ability to even try to recieve an alpha pack with said percent chance. In some cases even unequiping all cosmetics and attachments on my loadouts.