This time we’re going bigger than ever. Fabric, Power BI, SQL, AI and more. We're covering it all. You won't want to miss it.
Learn moreLevel up your Power BI skills this month - build one visual each week and tell better stories with data! Get started
Hi All,
I have one report I am updating for 1+ years and always worked fine.
Unfortunately, since a couple of weeks whenever I try to refresh power pivot, the model fails and return this error
============================
Error Message:
============================
Specified method is not supported.
============================
Call Stack:
============================
at Microsoft.AnalysisServices.Common.TableWidgetGridControl.UpdateWidgetTags()
at Microsoft.AnalysisServices.Common.TableWidgetGridControl.InitializeGridLayout(Boolean isReset)
at Microsoft.AnalysisServices.Common.TableWidgetGridControl.SetStorageTable(ITableDataView value, Stream stream)
at Microsoft.AnalysisServices.Common.SandboxEditor.ConnectTableWidgetData(TableWidgetPanel tableWidgetNew, TableWidgetViewModel tableWidgetViewModel, TableWidgetViewModelSandboxAdapter tableWidgetViewModelSandboxAdapter, DataModelingTable table)
at Microsoft.AnalysisServices.Common.SandboxEditor.InitializeTableWidget(TableWidgetPanel tableWidgetNew, TableWidgetViewModel tableWidgetViewModel, TableWidgetViewModelSandboxAdapter tableWidgetViewModelSandboxAdapter, DataModelingTable table)
at Microsoft.AnalysisServices.Common.SandboxEditor.LoadTableWidgetPanel(SandboxEditorTableWidgetViewModelKey key, DataModelingTable table, Boolean forceViewModelRefresh)
at Microsoft.AnalysisServices.Common.SandboxEditor.PopulateTableWidget(String tableId)
at Microsoft.AnalysisServices.Common.SandboxEditor.sheetsTab_sheetChanged(Object sender, EventArgs e)
at Microsoft.AnalysisServices.Common.SheetTabs.SetSelectedSheetInternal(String key)
at Microsoft.AnalysisServices.Common.SheetTabs.PopulateSheetListUI(String keyOfNewSheetToSelect, Boolean toRecreateUIElements)
at Microsoft.AnalysisServices.Common.SheetTabs.SetSelectedSheet(String key)
at Microsoft.AnalysisServices.Common.SandboxEditor.RefreshSandboxEditor(String tableId)
at Microsoft.AnalysisServices.XLHost.Modeler.ClientWindow.RefreshClientWindow(String tableName)
============================
The error persists on old versions of the file and even if I am not refreshing any query [using the same data that always worked].
Any suggestion would be appreciated!
Thank you, Umberto.
I would open a support ticket. I suspect a minor bug was introduced in a recent update. I assume you are on Office 365.
If not - and you haven't updated Excel in a while, then try to find an old version of the file. There may be a corruptoin in the current one.
DAX is for Analysis. Power Query is for Data Modeling
Proud to be a Super User!
MCSA: BI ReportingThanks edhans!
Yes, I am on 365 with the most updated version of Excel; I tried to use some older versions, but they all had the same issue.
Will open a support ticket too!
Check out the April 2026 Power BI update to learn about new features.
Sign up to receive a private message when registration opens and key events begin.
If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.