I have a new problem - my AUM no longer shows updates required. I looked at my applications and they are still 16.26 but I have reinstalled the AUM 4.13 and it still doesn't show a list of applications that need updating. So something else has happened.
Here's the log - you can see the last entries say "no updates found"
2019-07-21 09:29:51 [Microsoft AutoUpdate] <Info> DownloadManifest.DownloadSuccess: Successfully Downloaded. URL: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409ONDR18.xml
2019-07-21 09:29:51 [Microsoft AutoUpdate] <Info> UpdateFinder.Check.Status: No updates found
2019-07-21 09:29:51 [Microsoft AutoUpdate] <Info> Controller.CheckWindow.UptoDate: No updates found - up to date
2019-07-21 09:29:53 [Microsoft AutoUpdate] <Info> Controller.CheckWindow.NoUpdateFoundOK: No updates found - user clicked OK
2019-07-21 09:29:59 [Microsoft AutoUpdate] <Info> AppDelegate.Terminate: Microsoft AutoUpdate exited.
2019-07-21 09:30:29 [Microsoft Update Assistant] <Info> FBA.Terminate: Microsoft AU Daemon terminated normally
2019-07-21 09:33:43 [Apple Installer - preinstall] <Info> Starting installation process for Microsoft AutoUpdate
2019-07-21 09:33:43 [Apple Installer - preinstall] <Info> Closing Microsoft AutoUpdate
2019-07-21 09:33:43 [Apple Installer - preinstall] <Info> Closing Microsoft AU Daemon
2019-07-21 09:33:43 [Apple Installer - preinstall] <Info> Closing Microsoft AU Bootstrapper
2019-07-21 09:33:43 [Apple Installer - preinstall] <Info> Closing com.microsoft.autoupdate.helper
2019-07-21 09:33:43 [Apple Installer - preinstall] <Info> Closing com.microsoft.autoupdate.helpertool
2019-07-21 09:33:43 [Apple Installer - postinstall] <Info> Cleaning up old installations
2019-07-21 09:33:43 [Apple Installer - postinstall] <Info> Moving things into place
2019-07-21 09:33:44 [Apple Installer - postinstall] <Info> Finishing up
2019-07-21 09:33:44 [Apple Installer - postinstall] <Info> Adding defaults entry
2019-07-21 09:33:44 [Apple Installer - postinstall] <Info> Adding OneDrive to Applications dictionary
2019-07-21 09:33:49 [Apple Installer - postinstall] <Info> apple installer
2019-07-21 09:33:49 [Apple Installer - postinstall] <Info> Launching Microsoft AutoUpdate
2019-07-21 09:33:50 [Apple Installer - postinstall] <Info> Removing ReopenAfterGUIInstall preference setting
2019-07-21 09:33:50 [Apple Installer - postinstall] <Info> Resetting IOC consecutive restore failure count
2019-07-21 09:33:50 [Apple Installer - postinstall] <Info> Launching Microsoft Update Assistant
2019-07-21 09:33:50 [Apple Installer - postinstall] <Info> Finished installation process for Microsoft AutoUpdate
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> UpdateCore.AppRegistration: Attempted to register: MSau04, Preferences Available: YES, Re-Registration: YES, Success:NO
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> Configuration.Metadata: Initializing configuration
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> AppRegistry.Info: Registered App nameID: Microsoft AutoUpdate_MSau04 | Copies: 1
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> AppRegistry.Info: Registered App nameID: OneDrive_ONDR18 | Copies: 1
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> InstallStatus.Daemon: Daemon Status: daemonExists YES, daemonCodesigned: YES
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> InstallStatus.Helper: HelperTool Status: helperToolExists YES, helperToolCodesigned: YES
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> AppDelegate.Launch: Daemon Launch Status: Success
2019-07-21 09:33:56 [Microsoft Update Assistant] <Info> UpdateCore.AppRegistration: Attempted to register: MSau04, Preferences Available: YES, Re-Registration: YES, Success:NO
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> WebServices.Handler: Skip webservice. Only 0 since last call.
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> WebServices.ServiceAction: Invalid action type (null)
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> WebServices.Handler: MWSOnBoot handled action name Null
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> WebServices.WebContent: Request actions, CallerId MWSUXRefreshGate
2019-07-21 09:33:56 [Microsoft AutoUpdate] <Info> WebServices.ServiceResponse: Making request to https://officeci-mauservice.azurewebsites.net/MAUService/api//Actions for CallerId [MWSUXRefreshGate]
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> AppDelegate.Launch: Microsoft AutoUpdate launched.
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.ServiceResponse: Response time: 182.054043, callerID: MWSUXRefreshGate, api: /Actions
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.ServiceResponse: Web request to /Actions failed with error 404
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.WebContent: Action received for MWSUXRefreshGate
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.ServiceAction: Invalid action type (null)
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.WebContent: Request actions, CallerId MWSUXRefreshGate
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.ServiceResponse: Making request to https://officeci-mauservice.azurewebsites.net/MAUService/api//Actions for CallerId [MWSUXRefreshGate]
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.ServiceResponse: Response time: 29.666066, callerID: MWSUXRefreshGate, api: /Actions
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.ServiceResponse: Web request to /Actions failed with error 404
2019-07-21 09:33:57 [Microsoft AutoUpdate] <Info> WebServices.WebContent: Action received for MWSUXRefreshGate
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> Controller.CheckWindow.UpdateCheck: Checking for updates
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> UpdateManager.Network: Server is Reachable
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> UpdateFinder.Check.Status: Checking for updates.
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> DownloadManifest.Status: Downloading Chks - Will Attempt to download chks for 2 registered apps
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> DownloadActor.Status: Fetching file Success. File: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409MSau04-chk.xml
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> DownloadActor.Status: Fetching file Success. File: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409ONDR18-chk.xml
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> DownloadManifest.Status: Downloading Chks - Result: 1. Missing Manifests: 0. Downloaded chks: 2.
2019-07-21 09:33:59 [Microsoft AutoUpdate] <Info> UpdateFinder.Check.Status: Downloading chk files got 2 files. Will check if any indicates an update is available.
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> UpdateFinder.Check.Status: Updates should be offered due to update version being newer than registered app version - ONDR18
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> UpdateFinder.Check.Status: Downloading chk files - Found 1 apps and 0 suites that should be checked for updates
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> DownloadManifest.Status: Downloading Catalog and Manifest - 1 sets of Catalog and Manifest from URL: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> DownloadManifest.Status: Downloading Catalog and Manifest - Processing Catalog and Manifests. File Prefix: 0409ONDR18
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> DownloadActor.Status: Fetching file Success. File: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409ONDR18.cat
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> DownloadManifest.Status: Download and Validate Catalog - Success. URL: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409ONDR18.cat
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> DownloadManifest.Downloading: Downloading. URL: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409ONDR18.xml
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> DownloadActor.Status: Fetching file Success. File: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409ONDR18.xml
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> DownloadManifest.DownloadSuccess: Successfully Downloaded. URL: https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/0409ONDR18.xml
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> UpdateFinder.Check.Status: No updates found
2019-07-21 09:34:00 [Microsoft AutoUpdate] <Info> Controller.CheckWindow.UptoDate: No updates found - up to date
2019-07-21 09:34:01 [Microsoft AutoUpdate] <Info> Controller.CheckWindow.NoUpdateFoundOK: No updates found - user clicked OK
2019-07-21 09:34:03 [Microsoft AutoUpdate] <Info> Controller.MainWindow.SetAutomaticChecking: Set Automatic Checking, previous: 0
2019-07-21 09:34:12 [Microsoft AutoUpdate] <Info> AppDelegate.Terminate: Microsoft AutoUpdate exited.
2019-07-21 09:34:42 [Microsoft Update Assistant] <Info> FBA.Terminate: Microsoft AU Daemon terminated normally