This issue has been fixed. New Companion sessions are starting normally again. Thank you for your patience.

We're still seeing some new Companion sessions fail to start or take longer than usual. We've identified the cause and are working on a fix. We'll post another update within 1 hour.

Some new Companion sessions are failing to start or taking longer than usual to respond. We've identified the cause and are rolling out a fix. We'll post another update within 2 hours.