Merge pull request #115095 from danimir/patch-2

Updating known issues

Author: ShannonLeavitt

articles/sql-database/sql-database-release-notes.md

@@ -7,7 +7,7 @@ ms.service: sql-database
 ms.subservice: service
 ms.devlang: 
 ms.topic: conceptual
-ms.date: 05/04/2020
+ms.date: 05/13/2020
 ms.author: sstein
 ---
 # SQL Database release notes
@@ -72,6 +72,7 @@ The following features are enabled in Managed instance deployment model in H1 20
 
 |Issue  |Date discovered  |Status  |Date resolved  |
 |---------|---------|---------|---------|
+|[Restoring manual backup without CHECKSUM might fail](#restoring-manual-backup-without-checksum-might-fail)|May 2020|Has Workaround| |
 |[Agent becomes unresponsive upon modifying, disabling or enabling existing jobs](#agent-becomes-unresponsive-upon-modifying-disabling-or-enabling-existing-jobs)|May 2020|Automatically mitigated| |
 |[Permissions on resource group not applied to Managed Instance](#permissions-on-resource-group-not-applied-to-managed-instance)|Feb 2020|Has Workaround| |
 |[Limitation of manual failover via portal for failover groups](#limitation-of-manual-failover-via-portal-for-failover-groups)|Jan 2020|Has Workaround| |
@@ -98,6 +99,12 @@ The following features are enabled in Managed instance deployment model in H1 20
 |Database Mail feature with external (non-Azure) mail servers using secure connection| |Resolved|Oct 2019|
 |Contained databases not supported in managed instance| |Resolved|Aug 2019|
 
+### Restoring manual backup without CHECKSUM might fail
+
+In certain circumstances manual backup of databases that was made on managed instance without CHECKSUM might fail to be restored. In such case please retry restoring the backup until successful.
+
+**Workaround**: Take manual backups of databases on managed instance with CHECKSUM enabled.
+
 ### Agent becomes unresponsive upon modifying, disabling or enabling existing jobs
 
 In certain circumstances modifying an existing job, disabling, or enabling it can cause the agent to become unresponsive. The issue is automatically mitigated upon detection resulting in restart of the agent process.