For databases utilizing Availability Groups. Occurs when Availability Group databases are waiting to update their runtime status. This wait type is uncommon. If values are detected see suggested solutions below.
- Examine Windows Failover Clustering logs for any issues.
- Check the SQL Server error log for more information.
- Examine wait statistics on the instance for other Availability Group issues. Investigate accordingly.
AlwaysOn Availability Groups Troubleshooting and Monitoring Guide