A fix for the Matchmaking Error #1 (1.1.2) reports some players are seeing is planned for early next week.
As a possible workaround if you see this, select a different playlist and then requeue again.
🗣️ Competitive & Ranked players: We're temporarily enabling the Mega Buster in competitive playlists to resolve a crash issue in an upcoming event. It will be re-disabled tomorrow once the event is complete.
In order to prevent potential crashes, bookmarked tournament notifications have been disabled on PC. We are working on a fix and will provide an update when this has been re-enabled.
⚠️ We're aware of an issue where the Social Synergy API only works in Edit Mode and doesn't function when Developers publish their Creative Islands.
We're working on a resolution and will let you know once a fix is out.