FolderHierarchyChanged error when syncing a hotmail account

[worthywow]

Hi!

I’m getting a repeated AirSync FolderHierarchyChanged error (see details below) when refreshing my hotmail account. As far as I know no folders have been moved/changed during the sync.

I have tried the repair option on the folder and get the same issue.

Any advice much appreciated!

10:58:09 XXXX [AirSync] MailClient.Storage.Application.OperationException: Synchronization error (FolderHierarchyChanged)
            at MailClient.Protocols.AirSync.AirSyncItemSynchronizer`2.Synchronize(IItemSynchronizeContext`1 synchronizeContext, Folder folder, CancellationToken cancellationToken)
            at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass39_2.<EnqueueSynchronize>b__6(WorkerStatus status, CancellationToken ct)
            at MailClient.Protocols.AirSync.AirSyncGenericCommand.Execute(WorkerStatus status)
            at MailClient.Commands.Command.Process(WorkerStatus status)
           AccountId = null
           AccountName = null
           RunInPlace = False
           EnqueuedStackTrace =
                at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass39_0.<EnqueueSynchronize>b__0()
                at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline)
                at MailClient.Protocols.Common.ItemSynchronizer`2.Synchronize(Folder folder, SynchronizationPriority priority, Action`1 completed)
                at MailClient.Storage.Application.ItemCollection`2.Synchronize(SynchronizationPriority priority, Action`1 completed, Boolean fromUI)
                at MailClient.Storage.Application.Folder.Synchronize(SynchronizationPriority priority, Boolean fromUI)
                at MailClient.Protocols.Common.FolderSynchronizer.FolderActivated(Folder folder, Boolean goingOnline)
                at MailClient.Protocols.Common.FolderSynchronizer.GoOnlinePost()
                at MailClient.Protocols.AirSync.AirSyncAccount.GoOnlineInt()
                at MailClient.Protocols.Common.AccountBase.ChangeOnlineState(Boolean online, OfflineReason offlineReason)
                at MailClient.Protocols.Common.AccountBase.GoOnline()
                at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline)
                at MailClient.Protocols.AirSync.AirSyncAccount.Synchronize(SynchronizationPriority priority)
                at MailClient.Accounts.BindingAccountBase.Receive()
                at MailClient.Accounts.AccountManager.ReceiveAllInternal(Boolean checkIncludeInGlobalOperations, Boolean fromBackgroundSync)
                at MailClient.Accounts.AccountManager.SendAndReceiveAll(Boolean checkIncludeInGlobalOperations)
                at MailClient.Accounts.DesktopAccountManager.timerSendAndReceive_Tick(Object sender, EventArgs e)
                at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
                at System.Windows.Forms.NativeWindow.Callback(HWND hWnd, MessageId msg, WPARAM wparam, LPARAM lparam)
                at Windows.Win32.PInvoke.DispatchMessage(MSG* lpMsg)
                at System.Windows.Forms.Application.ComponentManager.Microsoft.Office.IMsoComponentManager.FPushMessageLoop(UIntPtr dwComponentID, msoloop uReason, Void* pvLoopData)
                at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(msoloop reason, ApplicationContext context)
                at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(msoloop reason, ApplicationContext context)
                at System.Windows.Forms.Application.RunDialog(Form form)
                at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
                at MailClient.UI.Forms.FormFolderProperties.ShowDialog(IWin32Window owner, Folder folder, FolderType folderType, String tabToActivate)
                at MailClient.UI.Controls.Folders.controlFolders.menuItem_Context_Properties_Click(Object sender, EventArgs e)
                at System.Windows.Forms.BindableComponent.RaiseEvent(Object key, EventArgs e)
                at System.Windows.Forms.ToolStripItem.OnClick(EventArgs e)
                at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
                at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
                at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
                at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
                at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
                at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
                at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
                at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
                at System.Windows.Forms.Control.WndProc(Message& m)
                at System.Windows.Forms.ToolStrip.WndProc(Message& m)
                at MailClient.Common.UI.Controls.ContextMenuStripEx.WndProc(Message& m)
                at System.Windows.Forms.NativeWindow.Callback(HWND hWnd, MessageId msg, WPARAM wparam, LPARAM lparam)
                at Windows.Win32.PInvoke.DispatchMessage(MSG* lpMsg)
                at System.Windows.Forms.Application.ComponentManager.Microsoft.Office.IMsoComponentManager.FPushMessageLoop(UIntPtr dwComponentID, msoloop uReason, Void* pvLoopData)
                at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(msoloop reason, ApplicationContext context)
                at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(msoloop reason, ApplicationContext context)
                at System.Windows.Forms.Application.Run(ApplicationContext context)
                at MailClient.Program.<>c.<Main>b__205_3()
                at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
                at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
                at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
                at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
                at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
                at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
                at System.Windows.Forms.Control.WndProc(Message& m)
                at System.Windows.Forms.ContainerControl.WndProc(Message& m)
                at System.Windows.Forms.Form.WndProc(Message& m)
                at MailClient.Common.UI.Forms.BaseForm.WndProc(Message& m)
                at System.Windows.Forms.NativeWindow.Callback(HWND hWnd, MessageId msg, WPARAM wparam, LPARAM lparam)
                at Xilium.CefGlue.Interop.libcef.run_message_loop()
                at MailClient.Program.Main(String[] args)
           GUIStatus_Exception_Reported = True

[Gary]

Please see:

Outlook error [AirSync] Synchronization error (SyncStateNotFound)

Recently, we have seen a lot of reports of Outlook calendar issues, the error usually looks like this: [AirSync] Synchronization error (SyncStateNotFound) In the log the error can also include details like Found invalid data while decoding. and Folder hierarchy changed. We are aware of this error but unfortunately had no luck replicating it yet or finding the real cause yet. The error usually means the server lost sync data for a particular device and account. That should normally happen o…

[worthywow]

Thanks! I’ve added the registry entry and turned off AirSync so hopefully that will fix it! I’ll report back if not…

[worthywow]

Hi Gary - just noticed after turning off AirSync when I go to send an email it is now showing “No account”. Looking on the forum there was someone with same problem and the advice was to turn AirSync back on. Guess if I do this I’ll get the folder error again.

Do you reckon the “No account” to do with this and if so any advice to fix this?

Thanks again,

[Chris_R]

I probably had the same problem. What I did:
After deleting and adding the hotmail-Account again, the problem was not gone.
Then I uninstalled and installed eM Client again. Till now it works, but I’m not sure this was the solution.

What I discovered during the setup of the hotmail account:

• Adding the hotmail-account with the automatic setup, the OAuth-Pop-Up will show up.
• After granting eM-Client access to my Microsoft account, the authentication window does not disappear.
• I allowed the browser to open eM Client to finish the setup
• I closed the Browser-Window where the OAuth-Pop-Up still was waiting for an action (what I already did with confirming the access)
• The setup was finished in eM Client.

For testing, I also deleted existing entries for eM Client in the Apps-List in my Microsoft-365-Account (Privacy, App Access). But the setup and Authentication of eM Client didn’t change.

When I open the Details in my MS-365-Account for eM Client:

It shows that:

Normaly the settings (what kind of access is granted) are shown.
For all other App it works, exept for eM Client.

Perhaps other Users have the same Error-Message in the App List in the Microsoft 365-Account?

[worthywow]

Thanks Chris - I might give that a go if my current fix doesn’t turn out to work!

Like you the authentication page didn’t close or switch me back to em Client which was slight unnerving but seemed to go through ok.

What I did was delete the account and then re-added it but ensured calendar and tasks were unticked i.e. I just had mail ticked. At the moment seems ok (it’s still refreshing a big archive folder I had) so hopefully is fixed now!