CoreBackgroundJobsSenderService failed to initialize after upgrading to 6.2.1 (4043793)

Core console is displaying the following error:

And the AppRecovery.log has the following entry:

ERROR 2018-08-28T16:09:40 [23] - Replay.ServiceHost.Implementation.Configuration.RegistryConfigurationService ()
Reading of configuration entry from registry has failed
Entry name: CoreBackgroundJobsSenderService
Entry typeReplay.Core.Contracts.CloudCommunication.CoreBackgroundJobsSenderServiceConfiguration
Registry keyLocalMachine\Software\AppRecovery\Core

System.FormatException depth 0: The string 'System.Byte[]' is not a valid AllXsd value. (0x80131537)

1) Stop core service - How to stop the core service?

2) Open up Windows Regedit and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\AppRecovery\Core\CoreBackgroundJobsSenderService

3) Save (right-click/export) the CoreBackgroundJobsSenderService and delete it

4) Start the Core Service

5) The key is now recreated and CoreBackgroundJobsSenderService running